@InProceedings{leermakers:1989:ACL,
  author    = {Rene Leermakers},
  title     = {How to cover a grammar},
  booktitle = {Proceedings of the 27th Annual Meeting of the Association for Computational Linguistics},
  month     = {June},
  year      = {1989},
  address   = {Vancouver, British Columbia, Canada},
  publisher = {Association for Computational Linguistics},
  pages     = {135--142},
  url       = {http://www.aclweb.org/anthology/P89-1017},
  doi       = {10.3115/981623.981640}
}