@InProceedings{clark:2015:MoL,
  author    = {Clark, Alexander},
  title     = {Canonical Context-Free Grammars and Strong Learning: Two Approaches},
  booktitle = {Proceedings of the 14th Meeting on the Mathematics of Language (MoL 2015)},
  month     = {July},
  year      = {2015},
  address   = {Chicago, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {99--111},
  url       = {http://www.aclweb.org/anthology/W15-2309}
}