@Inproceedings{EPTCS89.4,
  author    = {Czerwi\'nski, Wojciech and Lasota, S{\l}awomir},
  year      = {2012},
  title     = {Partially-commutative context-free languages},
  editor    = {Luttik, Bas and Reniers, Michel A.},
  booktitle = {{\rm Proceedings Combined 19th International Workshop on}
               Expressiveness in Concurrency {\rm and 9th Workshop on} Structured Operational Semantics,
               {\rm Newcastle upon Tyne, UK, September 3, 2012}},
  series    = {Electronic Proceedings in Theoretical Computer Science},
  volume    = {89},
  publisher = {Open Publishing Association},
  pages     = {35-48},
  doi       = {10.4204/EPTCS.89.4},
}