@inproceedings{DBLP:conf/wollic/BarthwalN10,
  author    = {Aditi Barthwal and
               Michael Norrish},
  title     = {Mechanisation of {PDA} and Grammar Equivalence for Context-Free
               Languages},
  booktitle = {Logic, Language, Information and Computation, 17th International
               Workshop, {WoLLIC}~2010},
  editor    = {Anuj Dawar and Ruy J. G. B. de Queiroz},
  series    = {Lecture Notes in Computer Science},
  volume    = {6188},
  year      = {2010},
  pages     = {125--135},
  ee        = {http://dx.doi.org/10.1007/978-3-642-13824-9_11},
  crossref  = {DBLP:conf/wollic/2010},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}