%0 Journal Article %T Category Structures %A Gazdar, Gerald %A Pullum, Geoffrey K. %A Carpenter, Robert %A Klein, Ewan %A Hukari, Thomas E. %A Levine, Robert D. %J Computational Linguistics %D 1988 %V 14 %N 1 %F gazdar-etal-1988-category %U https://aclanthology.org/J88-1001 %P 1-19