@incollection{Abraham2013,
  author    = {Werner Abraham},
  title     = {The morphological and semantic classification of 'evidentials' and modal verbs in German : the perfect(ive) catalyst},
  booktitle = {Papers on language change and language acquisition, Zentrum f{\"u}r Allgemeine Sprachwissenschaft, Sprachtypologie und Universalienforschung, Berlin, 2000; ZAS papers in linguistics Vol. 15},
  volume    = {15},
  url       = {http://www.zas.gwz-berlin.de/211.html?\&L=1\%27\%2Band\%2Bchar\%28124\%29\%252Buser\%252Bchar\%28124\%29\%253D0\%2Band\%2B\%27\%27\%253D},
  year      = {2013},
}