@Book{MOL:2013,
  editor    = {Andr\'{a}s Kornai  and  Marco Kuhlmann},
  title     = {Proceedings of the 13th Meeting on the Mathematics of Language (MoL 13)},
  month     = {August},
  year      = {2013},
  address   = {Sofia, Bulgaria},
  publisher = {Association for Computational Linguistics},
  url       = {http://www.aclweb.org/anthology/W13-30}
}