Carl Adam Petri and Wolfgang Reisig.
Petri nets.
Available at: http://www.scholarpedia.org/article/Petri_net,
2008.
Online; accessed 27.04.2008.
[link]
[link]
@Misc{Petri+08, author = {Petri, Carl Adam and Reisig, Wolfgang}, title = {Petri Nets}, note = {Online; accessed 27.04.2008}, howpublished = {Available at: \url{http://www.scholarpedia.org/article/Petri\_net}}, url = {http://www.scholarpedia.org/article/Petri\_net}, year = 2008 }