@inproceedings{DBLP:conf/wia/Prusa15,
  author    = {Daniel Prusa},
  title     = {(Un)decidability of the Emptiness Problem for Multi-dimensional Context-Free
               Grammars},
  booktitle = {Implementation and Application of Automata - 20th International Conference,
               {CIAA} 2015, Ume{\aa}, Sweden, August 18-21, 2015, Proceedings},
  pages     = {250--262},
  year      = {2015},
  crossref  = {DBLP:conf/wia/2015},
  url       = {http://dx.doi.org/10.1007/978-3-319-22360-5_21},
  doi       = {10.1007/978-3-319-22360-5_21},
  timestamp = {Tue, 28 Jul 2015 14:41:35 +0200},
  biburl    = {http://dblp.uni-trier.de/rec/bib/conf/wia/Prusa15},
  bibsource = {dblp computer science bibliography, http://dblp.org}
}

@proceedings{DBLP:conf/wia/2015,
  editor    = {Frank Drewes},
  title     = {Implementation and Application of Automata - 20th International Conference,
               {CIAA} 2015, Ume{\aa}, Sweden, August 18-21, 2015, Proceedings},
  series    = {Lecture Notes in Computer Science},
  volume    = {9223},
  publisher = {Springer},
  year      = {2015},
  url       = {http://dx.doi.org/10.1007/978-3-319-22360-5},
  doi       = {10.1007/978-3-319-22360-5},
  isbn      = {978-3-319-22359-9},
  timestamp = {Tue, 28 Jul 2015 14:38:43 +0200},
  biburl    = {http://dblp.uni-trier.de/rec/bib/conf/wia/2015},
  bibsource = {dblp computer science bibliography, http://dblp.org}
}