Learning Domain-Specific, L1-Specific Measures of Word Readability Shane Bergsma author David Yarowsky author 2013 text journal article Traitement Automatique des Langues continuing ATALA (Association pour le Traitement Automatique des Langues) France periodical academic journal bergsma-yarowsky-2013-learning https://aclanthology.org/2013.tal-1.7/ 2013 54 1 203 226