Ballweg, J. 1989. 1.4. Preterite versus (Present-)Perfect in Modern German. In Abraham, Werner and Janssen, Theo (eds.), Tempus - Aspekt - Modus, 85-102. Berlin, New York: De Gruyter. doi: 10.1515/9783111635200.85.
@incollection{422953, address = {Berlin, New York}, author = {Ballweg, J.}, booktitle = {Tempus - Aspekt - Modus}, editor = {Abraham, Werner and Janssen, Theo}, pages = {85-102}, publisher = {De Gruyter}, title = {1.4. Preterite versus (Present-)Perfect in Modern German.}, url = {http://www.degruyter.com/view/books/9783111635200/9783111635200.85/9783111635200.85.xml}, year = {1989}, doi = {10.1515/9783111635200.85}, lgcode = {German [deu] (computerized assignment from "german")}, src = {degruyter} }