1. Data structures and algorithms;Aho,1983
2. A review of Petri net applications in process planning;Cecil;Internat. J. Adv. Manufacturing Technology,1992
3. Applications of Petri nets in manufacturing systems;Desrochers,1995
4. Practice of Petri nets in manufacturing;DiCesare,1993
5. Methods and tools for cost estimation in mechanical manufacturing (METACOST);Eversheim;Production Engineering,1994