@incollection{Sauerland2013,
  author    = {Uli Sauerland},
  title     = {Presuppositions and the alternative tier},
  booktitle = {Semantics and Linguistic Theory : SALT ; Proceedings of the ... Semantics and Linguistic Theory Conference, 23.2013},
  volume    = {23},
  url       = {http://elanguage.net/journals/salt/article/download/23.156/3589},
  year      = {2013},
}