pdf Inferring Automatic Sequences draft
pdf Universality, Turing Incompleteness and Observers draft
pdf Computational Classification of Cellular Automata In print, IJ General Systems
pdf Computational Processes, Observers and Turing Incompleteness TCS 412 (2011) 1-2, 183-190.
pdf Cellular Automata, Decidability and Phase Space Fundamentae Informaticae 140 (2010) 1-20.
pdf Model Checking One-Dimensional Cellular Automata J. Cellular Automata, 4 (2009) 3, 213-224.
pdf Classification of Cellular Automata Encyclopedia of Complexity and System Science, ed. R. A. Meyers, Springer 2009.
pdf Divisibility and State Complexity The Mathematica J., 11 (2009) 3, 430--445.
pdf CDM: Teaching Discrete Mathematics to Computer Science Majors J. Educ. Resour. Comput., 5 (2005) 2, 1-11.
pdf Universality and Cellular Automata LNCS 3354 (2005) 50-59.
pdf The Complexity of Reversible Cellular Automata TCS 325 (2004) 317-328.
pdf Almost Periodic Configurations on Linear Cellular Automata Fundamentae Informaticae 58/3-4 (2003), 223-240.
pdf The Ehrenfeucht-Mycielski Sequence CIAA'03, Santa Barbara.
pdf The Size of Power Automata Theoretical Computer Science, 295/1-3 (2003) 371--386.
pdf Cellular Automata and Intermediate Degrees Theoretical Computer Science, 296/2 (2003) 365-375
pdf Reduced Power Automata Proceedings CIAA 2002, J-M. Champarnaud, D. Maurel, eds., 2002, 191-200
pdf automata, a Hybrid System for Computational Automata Theory Proceedings CIAA 2002, J-M. Champarnaud, D. Maurel, eds., 2002, 217-222
pdf Cellular Automata and Intermediate Reachability Problems Fundamentae Informaticae 52 (2002) 1-3, 249-256
pdf Decomposition of Additive CA Complex Systems 13 (2001) 2, 245-270
pdf Sigma-Automata and Chebyshev Polynomials Theoretical Computer Science, 230 (2000) 49--73
pdf Linear Cellular Automata and De Bruijn Automata M. Delorme and J. Mazoyer, eds., Cellular Automata: A Parallel Model, Kluwer, 1999
pdf Linear Cellular Automata and Fischer Automata Parallel Computing, 23 (1997) 11, 1613--1634
pdf Optimal Link Assignments for All-Terminal Reliability Discrete Applied Mathematics, 75 (1997), 285--295
pdf The Lattice of beta-r.e. Sets Draft.