@conference {sies/Costa07,
	title = {Module Composition within Petri Nets Model-based Development},
	booktitle = {SIES},
	year = {2007},
	note = {n/a},
	pages = {316-319},
	abstract = {n/a},
	author = {Anik{\'o} Costa and Lu\'{\i}s Gomes}
}
