Logical Aspects of Computational Linguistics. Celebrating 20 Years of LACL (1996–2016) 9th International Conference, LACL 2016, Nancy, France, December 5-7, 2016, Proceedings - Amblard, Maxime; de Groote, Philippe; Pogodalla, Sylvain; Retoré, Christian (Springer Berlin Heidelberg : Imprint: Springer, 2016)