Reviews ; Sampling; Language corpus; Sprachkorpus; Datensammlung; Data collection; Textkorpus (method.) ; Text corpus (method.) ; Corpus linguistics ; Zweitspracherwerb (Textproduktion) ; Second language acquisition (text production) ; Text production (second language acquisition) ; Technical vocabulary ; Argumentative discourse ; Sachtext; Scientific article; Sachbuch; Nonfiction; Technical discourse ; English