%0 Journal Article %A Wittek, Angelika %A Tomasello, Michael %+ Department of Developmental and Comparative Psychology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Department of Developmental and Comparative Psychology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society %T German children's productivity with tense morphology: The Perfekt (present perfect) : %G eng %U https://hdl.handle.net/11858/00-001M-0000-0010-07DC-1 %F EDOC: 18332 %R 10.1017/S0305000902005147 %7 2002-07-22 %D 2002 %* Review method: peer-reviewed %J Journal of Child Language %V 29 %N 3 %& 567 %P 567 - 589