Verhagen, Josje Language Acquisition Group, MPI for Psycholinguistics, Max Planck Society; The Comparative Study of L2 Acquisition, MPI for Psycholinguistics, Max Planck Society;
Verhagen, J. (2005). The role of the nonmodal auxiliary 'hebben' in Dutch as a second language. Toegepaste Taalwetenschap in Artikelen, 73, 41-52.