1. Sequential and Concurrent Behaviour in Petri Net Theory;Best,1987
2. Interleaving and partial orders in concurrency: a formal comparison;Best,1987
3. The complexity of testing the equivalence of transition sequences;Carstensen,1991
4. Axiomatizing net computations and processes;Degano,1989
5. Axiomatizing the algebra of net computations and processes;Degano;Acta Inform.,1996