Bibliographies ; Switzerland ; Second language acquisition (language teaching) ; Zweitspracherwerb (Unterricht) ; Foreign language teaching ; DaF; Deutsch als Zweitsprache; German as a second language; DaZ; German as a foreign language ; Cultural studies (language teaching) ; Kulturelle Information (Sprachunterricht) ; Sprache und Kultur (Sprachunterricht) ; Language and culture (language teaching) ; Area studies ; Lehrplan; Instructional advice ; Lehrmaterial; Teaching material ; Kulturvergleich; Language and culture ; Media (influence on language acquisition) ; German