BibTeX-Format:
@incollection{Klein 2009, publisher = {Mouton de Gruyter}, author = {Klein, Katarina}, editor = {Andreas Dufter and Jürg Fleischer and Guido Seiler}, year = {2009}, typ = {incollection}, title = {{S}emi-modal variation}, series = {Trends in Linguistics. Studies and Monographs