%0 Conference Paper %B 5{\textsuperscript{th}} IEEE International Conference on Industrial Informatics (INDIN 2007). %D 2007 %T {The Input-Output Place-Transition Petri Net Class and Associated Tools} %A Gomes, Luís %A {João Paulo} Barros %A Anikó Costa %A Ricardo Nunes %X n/a %Z n/a %8 Jul.