Markus E. Nebel On the Power of Subroutines for Finite State Machines. [Citation Graph (0, 0)][DBLP] Journal of Automata, Languages and Combinatorics, 2001, v:6, n:1, pp:51-74 [Journal]
Gheorghe Paun P Systems with Active Membranes: Attacking NP-Complete Problems. [Citation Graph (0, 0)][DBLP] Journal of Automata, Languages and Combinatorics, 2001, v:6, n:1, pp:75-90 [Journal]
Paavo Turakainen Injectivity of the Quotient h\g of two Morphisms and Ambiguity of Linear Grammars. [Citation Graph (0, 0)][DBLP] Journal of Automata, Languages and Combinatorics, 2001, v:6, n:1, pp:91-96 [Journal]