BibTeX-Format:
@incollection{Klein 2009, editor = {Andreas Dufter and Jürg Fleischer and Guido Seiler}, address = {Berlin}, booktitle = {{D}escribing and {M}odeling {V}ariation in {G}rammar}, title = {{S}emi-modal variation}, pBuchhandel_URL = {https://www.degruyter.com/view/books/9783110216097/9783110216097.3.297/9783110216097.3.297.xml}, year = {2009}, pages = {297-323}, author = {Klein, Katarina}, sortname = {Klein}, series = {Trends in Linguistics. Studies and Monographs