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