A useful extension to Prolog s definite clause grammar notation

Peter Van Roy. A useful extension to Prolog s definite clause grammar notation. SIGPLAN Notices, 24(11):132-134, 1989. [doi]

@article{Roy89:0,
  title = {A useful extension to Prolog s definite clause grammar notation},
  author = {Peter Van Roy},
  year = {1989},
  doi = {http://doi.acm.org/10.1145/71605.71617},
  tags = {Prolog, grammar},
  researchr = {http://researchr.org/publication/Roy89%3A0},
  cites = {0},
  citedby = {0},
  journal = {SIGPLAN Notices},
  volume = {24},
  number = {11},
  pages = {132-134},
}