Kohkichi Tsuji, Tadao Murata. On reachability conditions for unrestricted Petri nets. In ISCAS. pages 2713-2716, 1993.
@inproceedings{TsujiM93, title = {On reachability conditions for unrestricted Petri nets}, author = {Kohkichi Tsuji and Tadao Murata}, year = {1993}, researchr = {https://researchr.org/publication/TsujiM93}, cites = {0}, citedby = {0}, pages = {2713-2716}, booktitle = {ISCAS}, }