1. A complete model for representing the coordination of asynchronous processes;Agerwala,1974
2. Comparing complexity classes;Book;J. Comput. Systems,1974
3. A decidability theorem for a class of vector addition systems;Crespi-Reghizzi;Inf. Proc. Lett.,1975
4. Petri net languages;Hack;Comp. Structures Group Memo 124 M.I.T. Project MAC,1975
5. Analysis of production schemata by Petri nets;Hack,1972