@inbook {337,
	title = {On Weighted T-Systems},
	booktitle = {Application and Theory of Petri Nets 1992},
	series = {Lecture Notes in Computer Science},
	number = {616},
	year = {1992},
	pages = {348-367},
	publisher = {Springer-Verlag},
	organization = {Springer-Verlag},
	address = {Berlin},
	isbn = {3-540-55676-1},
	author = {E. Teruel and P. Chrzastowski and J.M. Colom and M. Silva},
	editor = {K. Jensen}
}

