https://vocabularyserver.com/bll/en/ Bibliography of Linguistic Literature Thesaurus University Library Frankfurt, Germany linguistic, literatura, language University Library Frankfurt, Germany 2018-07-30 en 2018-07-30 09:27:36 Kainji languages 2018-07-30 09:27:36https://vocabularyserver.com/bll/en/xml.php?skosTema=3117