New York University: Description of the PROTEUS System as Used for MUC-3 Ralph Grishman author John Sterling author Catherine Macleod author 1991 text Third Message Understanding Conference (MUC-3): Proceedings of a Conference Held in San Diego, California, May 21-23, 1991 conference publication grishman-etal-1991-new-york https://aclanthology.org/M91-1028/ 1991