Towards a Linguistic Linked Open Data cloud: The Open Linguistics Working Group Christian Chiarcos author Sebastian Hellmann author Sebastian Nordhoff author 2011 text journal article Traitement Automatique des Langues continuing ATALA (Association pour le Traitement Automatique des Langues) France periodical academic journal chiarcos-etal-2011-towards https://aclanthology.org/2011.tal-3.10/ 2011 52 3 245 275