The TÜ_DE-L1-Korpus is a corpus of spoken child language that has been collected in the project Specific Language Impairment and Early Successive Language Acquisition (Project E4) at the Research Center on Multilingualism, University of Hamburg.

Audio recordings (spontaneous and elicited language) in Turkish with twelve bilingual children with L1 Turkish and L2 German with AOA of 3-4 years. Comparable data for the TÜ_DE-cL2-Korpus.