@conference {INDIN2007iopt,
	title = {{The Input-Output Place-Transition Petri Net Class and Associated Tools}},
	booktitle = {5{\textsuperscript{th}} IEEE International Conference on Industrial Informatics (INDIN 2007).},
	year = {2007},
	note = {n/a},
	month = {Jul.},
	abstract = {n/a},
	author = {Gomes, Lu{\'\i}s and {Jo{\~a}o Paulo} Barros and Anik{\'o} Costa and Ricardo Nunes}
}
@conference {INDIN2007iopt,
	title = {{The Input-Output Place-Transition Petri Net Class and Associated Tools}},
	booktitle = {5{\textsuperscript{th}} IEEE International Conference on Industrial Informatics (INDIN 2007).},
	year = {2007},
	note = {n/a},
	month = {Jul.},
	abstract = {n/a},
	author = {Gomes, Lu{\'\i}s and {Jo{\~a}o Paulo} Barros and Anik{\'o} Costa and Ricardo Nunes}
}
@conference {INDIN2007iopt,
	title = {{The Input-Output Place-Transition Petri Net Class and Associated Tools}},
	booktitle = {5{\textsuperscript{th}} IEEE International Conference on Industrial Informatics (INDIN 2007).},
	year = {2007},
	note = {n/a},
	month = {Jul.},
	abstract = {n/a},
	author = {Gomes, Lu{\'\i}s and {Jo{\~a}o Paulo} Barros and Anik{\'o} Costa and Ricardo Nunes}
}
@conference {INDIN2007iopt,
	title = {{The Input-Output Place-Transition Petri Net Class and Associated Tools}},
	booktitle = {5{\textsuperscript{th}} IEEE International Conference on Industrial Informatics (INDIN 2007).},
	year = {2007},
	note = {n/a},
	month = {Jul.},
	abstract = {n/a},
	author = {Gomes, Lu{\'\i}s and {Jo{\~a}o Paulo} Barros and Anik{\'o} Costa and Ricardo Nunes}
}
