@article{JanssensR89,
  title = {Actor Grammars},
  author = {Dirk Janssens and Grzegorz Rozenberg},
  year = {1989},
  tags = {grammar},
  researchr = {https://researchr.org/publication/JanssensR89},
  cites = {0},
  citedby = {0},
  journal = {Theory Comput. Syst.},
  volume = {22},
  number = {2},
  pages = {75-107},
}