The Mathematics of Language 10th and 11th Biennial Conference, MOL 10, Los Angeles, CA, USA, July 28-30, 2007, and MOL 11, Bielefeld, Germany, August 20-21, 2009, Revised Selected Papers - Ebert, Christian; Jäger, Gerhard; Michaelis, Jens (Springer Berlin Heidelberg, 2010)