@inproceedings{Szymanik2011WoLLIC,
  author    = {Juha Kontinen and
               Jakub Szymanik},
  title     = {Characterizing Definability of Second-Order Generalized
               Quantifiers},
  booktitle = {WoLLIC},
  year      = {2011},
  pages     = {187-200},
  ee        = {http://dx.doi.org/10.1007/978-3-642-20920-8_20},
  crossref  = {DBLP:conf/wollic/2011},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}
@proceedings{DBLP:conf/wollic/2011,
  editor    = {Lev D. Beklemishev and
               Ruy de Queiroz},
  title     = {Logic, Language, Information and Computation - 18th International
               Workshop, WoLLIC 2011, Philadelphia, PA, USA, May 18-20,
               2011. Proceedings},
  booktitle = {WoLLIC},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {6642},
  year      = {2011},
  isbn      = {978-3-642-20919-2},
  ee        = {http://dx.doi.org/10.1007/978-3-642-20920-8},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}