@article{Burkhard81,
  title = {Ordered Firing in Petri Nets},
  author = {Hans-Dieter Burkhard},
  year = {1981},
  researchr = {https://researchr.org/publication/Burkhard81},
  cites = {0},
  citedby = {0},
  journal = {Elektronische Informationsverarbeitung und Kybernetik},
  volume = {17},
  number = {2/3},
  pages = {71-86},
}