Hollós, Zita. “„Buch“, „hörbuch“, „e-book“ & Co. Lexical Change and Lemma Update of a German Learner ́s Dictionary Portal”. Journal for German and Scandinavian Studies / Списание „Германистика и скандинавистика“ 1 (December 31, 2025): 92–118. Accessed March 27, 2026. https://periodicals.uni-sofia.bg/index.php/gsc/article/view/3213.