EXPLORER: A Natural Language Processing System for Oil Exploration Wendy G Lehnert author Steven P Shwartz author 1983-02 text First Conference on Applied Natural Language Processing Association for Computational Linguistics Santa Monica, California, USA conference publication lehnert-shwartz-1983-explorer 10.3115/974194.974207 https://aclanthology.org/A83-1011/ 1983-02 69 72