BibTeX-Format:
@incollection{Klein 2009, address = {Berlin}, pages = {297-323}, author = {Klein, Katarina}, typ = {incollection}, editor = {Andreas Dufter and Jürg Fleischer and Guido Seiler}, title = {{S}emi-modal variation}, booktitle = {{D}escribing and {M}odeling {V}ariation in {G}rammar}, publisher = {Mouton de Gruyter}, year = {2009}, sortname = {Klein}, series = {Trends in Linguistics. Studies and Monographs