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