%0 Book Section %B Proceedings of Design Methods Based on Nets (DEMON). Esprit Basic Research Action 3148. W.G. 3: Algebra and Proof Methods. Deliverables Covering the Period June 1989 to June 1990 %D 1990 %T Improving the linearly based characterization of P/T nets %A J.M. Colom %A M. Silva %C Paris, Frances %8 06/1990