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