@InProceedings{vannella-EtAl:2014:P14-1,
  author    = {Vannella, Daniele  and  Jurgens, David  and  Scarfini, Daniele  and  Toscani, Domenico  and  Navigli, Roberto},
  title     = {Validating and Extending Semantic Knowledge Bases using Video Games with a Purpose},
  booktitle = {Proceedings of the 52nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)},
  month     = {June},
  year      = {2014},
  address   = {Baltimore, Maryland},
  publisher = {Association for Computational Linguistics},
  pages     = {1294--1304},
  url       = {http://www.aclweb.org/anthology/P/P14/P14-1122}
}