@inproceedings{LICS-1988-Winskel,
	author        = "Glynn Winskel",
	booktitle     = "{Proceedings of the Third Annual Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.1988.5113",
	isbn          = "0-8186-0853-6",
	pages         = "142--154",
	publisher     = "{IEEE Computer Society}",
	title         = "{A Category of Labelled Petri Nets and Compositional Proof System}",
	year          = 1988,
}