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