G. Pullum, and B. Scholz. Logical Aspects of Computational Linguistics: 4th International Conference, Lacl 2001, Le Croisic, France, June 27-29, 2001, Proceedings, (2001)
M. van Lambalgen, and F. Hamm. Blackwell Publishing, (2005)Explorations in semantics series, edited by Susan Rothstein, ISBN 1-4051-1213-1, ISBN 1-4051-1212-3.