World's Best Scientists 2026 revealed!
VIEW LIST
Bruno Courcelle

Bruno Courcelle

University of Bordeaux
France

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Mathematics 51 1001 854 52 47 186 13950
Computer Science 52 5006 4869 102 101 193 14083

Bruno Courcelle publications per year

The chart shows the history of publications by Bruno Courcelle between 1974 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Bruno Courcelle published across 52 years, from 1974 to 2025, averaging 3.8 papers a year. Output peaked at 14 publications in 2012. 1 of the 197 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 1974 to 2025. Vertical axis: number of publications, 0 to 14. Peak 14 publications in 2012. 1974: 5 publications 1975: 0 publications 1976: 3 publications 1977: 3 publications 1978: 6 publications 1979: 2 publications 1980: 2 publications 1981: 3 publications 1982: 3 publications 1983: 3 publications 1984: 4 publications 1985: 1 publication 1986: 4 publications 1987: 3 publications 1988: 5 publications 1989: 3 publications 1990: 7 publications 1991: 6 publications 1992: 4 publications 1993: 7 publications 1994: 7 publications 1995: 8 publications 1996: 4 publications 1997: 2 publications 1998: 3 publications 1999: 2 publications 2000: 5 publications 2001: 1 publication 2002: 7 publications 2003: 2 publications 2004: 5 publications 2005: 4 publications 2006: 3 publications 2007: 6 publications 2008: 6 publications 2009: 6 publications 2010: 4 publications 2011: 3 publications 2012: 14 publications 2013: 2 publications 2014: 3 publications 2015: 5 publications 2016: 1 publication 2017: 4 publications 2018: 1 publication 2019: 0 publications 2020: 7 publications 2021: 5 publications 2022: 1 publication 2023: 1 publication 2024: 0 publications 2025: 1 publication
1974 2025

197 publications in total across all disciplines

View publications per year as a table
Bruno Courcelle: publications per year, 1974 to 2025
Year Publications
1974 5
1975 0
1976 3
1977 3
1978 6
1979 2
1980 2
1981 3
1982 3
1983 3
1984 4
1985 1
1986 4
1987 3
1988 5
1989 3
1990 7
1991 6
1992 4
1993 7
1994 7
1995 8
1996 4
1997 2
1998 3
1999 2
2000 5
2001 1
2002 7
2003 2
2004 5
2005 4
2006 3
2007 6
2008 6
2009 6
2010 4
2011 3
2012 14
2013 2
2014 3
2015 5
2016 1
2017 4
2018 1
2019 0
2020 7
2021 5
2022 1
2023 1
2024 0
2025 1
Total 197
Download as CSV

Bruno Courcelle publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Bruno Courcelle sits on this spectrum.

No. of scientists
25 50 75 100
Bar chart with 100 bars. Horizontal axis: publications, 42–46 to 537+. Vertical axis: number of scientists, 0 to 112. Most scientists, 112, have 142–146 publications. The last bar groups every scientist with 537 publications or more. The highlighted bar, 182–186 publications, is where this scientist sits. 42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientist 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientist 522–526 publications: 3 scientists 527–531 publications: 1 scientist 532–536 publications: 4 scientists 537+ publications: 100 scientists
42–46 publications 537+

This scientist: 186 publications — 56th percentile

56% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

View publications distribution as a table
Number of Mathematics scientists by publication count, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
Publications Scientists This scientist
42–46 3
47–51 5
52–56 7
57–61 20
62–66 14
67–71 25
72–76 19
77–81 35
82–86 50
87–91 60
92–96 86
97–101 84
102–106 83
107–111 90
112–116 99
117–121 90
122–126 91
127–131 109
132–136 110
137–141 98
142–146 112
147–151 102
152–156 88
157–161 106
162–166 83
167–171 102
172–176 77
177–181 81
182–186 78 186
187–191 71
192–196 92
197–201 64
202–206 69
207–211 64
212–216 62
217–221 58
222–226 53
227–231 50
232–236 46
237–241 46
242–246 46
247–251 43
252–256 29
257–261 45
262–266 30
267–271 33
272–276 34
277–281 30
282–286 31
287–291 21
292–296 34
297–301 26
302–306 10
307–311 17
312–316 23
317–321 13
322–326 16
327–331 26
332–336 13
337–341 13
342–346 16
347–351 17
352–356 12
357–361 18
362–366 18
367–371 9
372–376 11
377–381 8
382–386 8
387–391 9
392–396 9
397–401 8
402–406 11
407–411 6
412–416 6
417–421 9
422–426 8
427–431 5
432–436 8
437–441 8
442–446 4
447–451 4
452–456 4
457–461 2
462–466 2
467–471 4
472–476 3
477–481 3
482–486 6
487–491 3
492–496 5
497–501 5
502–506 1
507–511 6
512–516 4
517–521 1
522–526 3
527–531 1
532–536 4
537+ 100
Download as CSV

Bruno Courcelle D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Bruno Courcelle sits on this spectrum.

No. of scientists
50 100 150
Bar chart with 57 bars. Horizontal axis: D-Index, 30 to 86+. Vertical axis: number of scientists, 0 to 174. Most scientists, 174, have 30 D-Index. The last bar groups every scientist with 86 D-Index or more. The highlighted bar, 51 D-Index, is where this scientist sits. 30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 51 D-Index — 73rd percentile

73% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

View D-Index distribution as a table
Number of Mathematics scientists by D-index, Research.com 2026 ranking edition. Based on 3,584 ranked scientists.
D-Index Scientists This scientist
30 174
31 151
32 174
33 117
34 136
35 127
36 145
37 153
38 150
39 150
40 138
41 136
42 93
43 108
44 115
45 112
46 103
47 75
48 59
49 67
50 60
51 57 51
52 59
53 62
54 60
55 50
56 42
57 54
58 50
59 42
60 41
61 35
62 40
63 21
64 31
65 27
66 29
67 19
68 25
69 17
70 18
71 12
72 14
73 13
74 18
75 9
76 11
77 10
78 9
79 16
80 12
81 10
82 5
83 5
84 13
85 6
86+ 99
Download as CSV

Overview

Bruno Courcelle is affiliated with the University of Bordeaux in France. Their research primarily focuses on computer science, with a significant concentration on computational theory and mathematics. They have also contributed to artificial intelligence, geometry and topology, computer networks and communications, and molecular biology.

The scientist's work covers a variety of advanced topics, including semigroups and automata theory, advanced graph theory research, advanced algebra and logic, logic, programming, and type systems, algorithms and data compression, complexity and algorithms in graphs, and advanced topology and set theory.

Frequent publication venues for Bruno Courcelle include:

  • arXiv (Cornell University)
  • Fundamenta Informaticae
  • RAIRO - Theoretical Informatics and Applications
  • Logical Methods in Computer Science
  • Moscow Journal of Combinatorics and Number Theory

Some of the recent papers authored by Bruno Courcelle are:

  • Betweenness of partial orders, 2020, RAIRO - Theoretical Informatics and Applications
  • Axiomatization of betweenness in order-theoretic trees, 2021, Logical Methods in Computer Science
  • Unfoldings and Coverings of Weighted Graphs, 2023, Fundamenta Informaticae
  • On defining linear orders by automata, 2020, Moscow Journal of Combinatorics and Number Theory
  • Betweenness of partial orders, 2020, arXiv (Cornell University)

Bruno Courcelle has collaborated frequently with several coauthors, including:

  • Irène Durand (4 joint publications)
  • Mikhail Raskin (2 joint publications)
  • Yves Métivier (1 joint publication)

Best Publications

  • The monadic second-order logic of graphs. I. recognizable sets of finite graphs

    Bruno Courcelle

  • Graph rewriting: an algebraic and logic approach

    Brouno Courcelle

  • Linear Time Solvable Optimization Problems on Graphs of Bounded Clique-Width

    Bruno Courcelle;Johann A. Makowsky;Udi Rotics

  • Upper bounds to the clique width of graphs

    Bruno Courcelle;Stephan Olariu

  • Fundamental properties of infinite trees

    Bruno Courcelle

  • Graph Structure and Monadic Second-Order Logic: A Language-Theoretic Approach

    Bruno Courcelle;Joost Engelfriet

  • Handle-rewriting hypergraph grammars

    Bruno Courcelle;Joost Engelfriet;Grzegorz Rozenberg

  • The expression of graph properties and graph transformations in monadic second-order logic

    B. Courcelle

  • Graph expressions and graph rewritings

    Michel Bauderon;Bruno Courcelle

  • Monadic second-order evaluations on tree-decomposable graphs

    B. Courcelle;M. Mosbah

  • Monadic second-order definable graph transductions: a survey

    Bruno Courcelle

  • The monadic second-order logic of graphs III : tree-decompositions, minors and complexity issues

    Bruno Courcelle

  • An algebraic theory of graph reduction

    Stefan Arnborg;Bruno Courcelle;Andrzej Proskurowski;Detlef Seese

  • On the fixed parameter complexity of graph enumeration problems definable in monadic second-order logic

    B. Courcelle;J. A. Makowsky;U. Rotics

  • Attribute grammars and recursive program schemes II

    Bruno Courcelle;Paul Franchi-Zannettacci

  • Recursive applicative program schemes

    Bruno Courcelle

  • The monadic second order logic of graphs VI: on several representations of graphs by relational structures

    Bruno Courcelle

  • An Axiomatic Definition of Context-Free Rewriting and its Application to NLC Graph Grammars

    Bruno Courcelle

  • Equivalences and transformations of regular systems—Applications to recursive program schemes and grammars☆

    Bruno Courcelle

  • The monadic second-order logic of graphs V: on closing the gap between definability and recognizability

    Bruno Courcelle

Frequent Co-Authors

Joost Engelfriet
Joost Engelfriet Leiden University
Cyril Gavoille
Cyril Gavoille University of Bordeaux
Grzegorz Rozenberg
Grzegorz Rozenberg Leiden University
Jens Lagergren
Jens Lagergren Royal Institute of Technology
Stephan Olariu
Stephan Olariu Old Dominion University
Andreas Podelski
Andreas Podelski University of Freiburg

External Links

Wikipedia of Bruno Courcelle Personal website of Bruno Courcelle Google Scholar page

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

For those studying Mathematics in the USA, expanding career options often involves pursuing further education in complementary fields. Many students consider advanced degrees like an MBA, which can provide essential business and management skills to enhance their mathematical expertise.

Programs such as the 1 year mba appeal to professionals looking to quickly boost their credentials without a long break in their careers. Additionally, flexibility is a key factor, and some may prefer an online mba accepting transfer credits to build on prior coursework and reduce time and cost.

Beyond traditional business routes, mathematics graduates with an interest in data can explore specialized fields like data analytics. Pursuing a data analytics masters programs offers targeted skills that are highly sought after in industries relying on big data and predictive modeling.

For those new to business studies, considering easiest mba specialization options can provide a smoother transition while still gaining valuable credentials to diversify career opportunities. Combining math with such degrees opens doors to leadership roles in finance, tech, and consulting.

Best Scientists Citing Bruno Courcelle

Hans L. Bodlaender

Hans L. Bodlaender

Utrecht University

Publications: 82

Daniël Paulusma

Daniël Paulusma

Durham University

Publications: 75

Fedor V. Fomin

Fedor V. Fomin

University of Bergen

Publications: 62

Stefan Szeider

Stefan Szeider

TU Wien

Publications: 61

Joost Engelfriet

Joost Engelfriet

Leiden University

Publications: 60

Daniel Lokshtanov

Daniel Lokshtanov

University of California, Santa Barbara

Publications: 58

Martin Grohe

Martin Grohe

RWTH Aachen University

Publications: 55

Dimitrios M. Thilikos

Dimitrios M. Thilikos

National and Kapodistrian University of Athens

Publications: 54

Vadim V. Lozin

Vadim V. Lozin

University of Warwick

Publications: 51

Saket Saurabh

Saket Saurabh

Institute of Mathematical Sciences

Publications: 49

Georg Gottlob

Georg Gottlob

University of Calabria

Publications: 45

Andreas Brandstädt

Andreas Brandstädt

University of Rostock

Publications: 43

Michał Pilipczuk

Michał Pilipczuk

University of Warsaw

Publications: 43

Michael R. Fellows

Michael R. Fellows

Lebanese American University

Publications: 41

Christophe Paul

Christophe Paul

University of Montpellier

Publications: 38

Stefan Woltran

Stefan Woltran

TU Wien

Publications: 25

Trending Scientists

Jilei Liu

Jilei Liu

Hunan University

Yiguang Wang

Yiguang Wang

Beijing Institute of Technology

John R. Seiler

John R. Seiler

Virginia Tech

Adriel Boals

Adriel Boals

University of North Texas

Richard K. Bambach

Richard K. Bambach

National Museum of Natural History

Thierry Aubin

Thierry Aubin

University of Paris-Saclay

Vladimir Ivanov

Vladimir Ivanov

Lomonosov Moscow State University

Richard S. Lampitt

Richard S. Lampitt

National Oceanography Centre

Alpha S. Yap

Alpha S. Yap

University of Queensland

Pawan Lingras

Pawan Lingras

Saint Mary's University

Guangtao Li

Guangtao Li

Tsinghua University

Yu Lan

Yu Lan

Zhengzhou University

Tatjana N. Parac-Vogt

Tatjana N. Parac-Vogt

KU Leuven

Donald D. Heistad

Donald D. Heistad

University of Iowa

Bo Hellman

Bo Hellman

Umeå University

Richard H. Myers

Richard H. Myers

Boston University

Related Mathematics Rankings & Guides

2027 Shortest Online Mathematics Degree Master's Programs That Pay Well: Cost, Time to Completion, and Salary Outlook

2027 Shortest Online Mathematics Degree Master's Programs That Pay Well: Cost, Time to Completion, and Salary Outlook
2027 List of STEM Courses: Factors to Consider Before Choosing a STEM Degree

2027 List of STEM Courses: Factors to Consider Before Choosing a STEM Degree
2027 Best Online Bachelor's in Mathematics Degree Programs

2027 Best Online Bachelor's in Mathematics Degree Programs
2027 Best Online Master's in Mathematics Degree Programs

2027 Best Online Master's in Mathematics Degree Programs
2027 What Do You Learn in a Mathematics Degree: Curriculum, Skills & Core Competencies

2027 What Do You Learn in a Mathematics Degree: Curriculum, Skills & Core Competencies
2027 Cheapest Online Biostatistics Master's Degrees That Pay Well: Tuition, Duration, and Earnings

2027 Cheapest Online Biostatistics Master's Degrees That Pay Well: Tuition, Duration, and Earnings
2027 Most Affordable Online Master's in Mathematics Degree Programs

2027 Most Affordable Online Master's in Mathematics Degree Programs
2027 One-Year Online Biostatistics Master's Degree Programs: Accelerated Options, Costs & Outcomes

2027 One-Year Online Biostatistics Master's Degree Programs: Accelerated Options, Costs & Outcomes
2027 Online Mathematics Bachelor's Degree Completion Programs for Working Adults

2027 Online Mathematics Bachelor's Degree Completion Programs for Working Adults
2027 Fastest Online Master’s in Mathematics Degree Programs

2027 Fastest Online Master’s in Mathematics Degree Programs
2027 Most Affordable Online Bachelor's in Mathematics Degree Programs

2027 Most Affordable Online Bachelor's in Mathematics Degree Programs
2027 Fastest Online Bachelor's in Mathematics Degree Programs

2027 Fastest Online Bachelor's in Mathematics Degree Programs

Recently Published Articles

2027 What Is a Master of Social Work (MSW) Degree?

2027 What Is a Master of Social Work (MSW) Degree?
2027 Best Forensic Accounting Master's Specializations for Career Growth

2027 Best Forensic Accounting Master's Specializations for Career Growth
2027 How to Become a Caregiver: Certification Requirements in Mississippi

2027 How to Become a Caregiver: Certification Requirements in Mississippi
2027 Best Online Master's in Public Administration for Budget and Finance Leaders

2027 Best Online Master's in Public Administration for Budget and Finance Leaders
2027 Self-Paced Online Emergency Management Degree Master's Programs

2027 Self-Paced Online Emergency Management Degree Master's Programs
2027 Accelerated Online Elementary Education Degree Programs VS Weekly Start Online Degrees: Which Is Faster

2027 Accelerated Online Elementary Education Degree Programs VS Weekly Start Online Degrees: Which Is Faster
2027 How to Become an Art Director: Education, Salary, and Job Outlook

2027 How to Become an Art Director: Education, Salary, and Job Outlook
2027 What Prerequisites Do You Need for an Engineering Management Master's Degree? Entry Requirements, Credits & Eligibility Rules

2027 What Prerequisites Do You Need for an Engineering Management Master's Degree? Entry Requirements, Credits & Eligibility Rules
2027 Easiest Online Screenwriting Master's Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions

2027 Easiest Online Screenwriting Master's Degree Programs That Pay Well: High-Salary Degrees with Simple Admissions
2027 Best Online Nurse Practitioner Programs by Career Outcome

2027 Best Online Nurse Practitioner Programs by Career Outcome
2027 Best Accredited Online Neuroscience Bachelor's Degree Programs

2027 Best Accredited Online Neuroscience Bachelor's Degree Programs
2027 Is Demand for Communication Degree Graduates Growing or Declining?

2027 Is Demand for Communication Degree Graduates Growing or Declining?
2027 Fastest Online Industrial Organizational Psychology Bachelor's Degree Programs You Can Finish in 3 Years or Less

2027 Fastest Online Industrial Organizational Psychology Bachelor's Degree Programs You Can Finish in 3 Years or Less
2027 Best Online Nutrition Certifications

2027 Best Online Nutrition Certifications
2027 State-by-State Licensing Requirements for Speech Pathology Graduates

2027 State-by-State Licensing Requirements for Speech Pathology Graduates
2027 How to Pay for a Teaching Master's Degree with Financial Aid

2027 How to Pay for a Teaching Master's Degree with Financial Aid
2027 Information Science vs. Data Science: Explaining the Difference

2027 Information Science vs. Data Science: Explaining the Difference
2027 Most Affordable Online Doctorate in Educational Leadership Programs

2027 Most Affordable Online Doctorate in Educational Leadership Programs
2027 Work Experience Requirements for Mental Health Counseling Degree Programs

2027 Work Experience Requirements for Mental Health Counseling Degree Programs
2027 Is a 2-Year Space Studies Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs

2027 Is a 2-Year Space Studies Degree Worth It: Accelerated Bachelor's ROI & Time Trade-Offs
2027 How to Become a Kindergarten Teacher in Oklahoma

2027 How to Become a Kindergarten Teacher in Oklahoma