Bundesrepublik Deutschland; Federal Republic of Germany; BRD; Germany ; Language teaching ; Second language acquisition (language teaching) ; Zweitspracherwerb (Unterricht) ; Foreign language teaching ; Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; Techniques (in research) ; Research techniques ; English
