@article(2006-using-the-wordnet-ontology-in-the-geoclef-geographical-information-retrieval-task,
  author = {Davide Buscaldi and Paolo Rosso and Emilio Sanchis Arnal},
  title = {Using the WordNet Ontology in the GeoCLEF Geographical Information Retrieval Task},
  year = {2006},
  journal = {Lecture Notes in Computer Science},
  volume = {4022},
  pages = {939-946}
)