Bearb. Fassung erschienen in: Proceedings of the Seventh International Workshop on Treebanks and Lingusitic Theories (TLT-7), Groningen, The Netherlands, 2009
DaF; Deutsch als Zweitsprache; German as a second language; DaZ; German as a foreign language ; LDV; Linguistic data processing ; Schwierigkeit (Zweitspracherwerb) ; Difficulty (second language acquisition) ; Complexity (second language acquisition) ; Wh-relative; Relativsatz, freier; Wh-conditional; Free relative ; Prepositional phrase movement; PP-movement