Modality and Negation: An Introduction to the Special Issue Roser Morante author Caroline Sporleder author 2012-06 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal morante-sporleder-2012-modality 10.1162/COLI_a_00095 https://aclanthology.org/J12-2001/ 2012-06 38 2 223 260