%0 Conference Proceedings %T Tree Unification Grammar %A Popowich, Fred %S 27th Annual Meeting of the Association for Computational Linguistics %D 1989 %8 June %I Association for Computational Linguistics %C Vancouver, British Columbia, Canada %F popowich-1989-tree %R 10.3115/981623.981651 %U https://aclanthology.org/P89-1028 %U https://doi.org/10.3115/981623.981651 %P 228-236