@InProceedings{Parsing_with_Logical_Variables,
author = "Tim Finin and Martha Palmer",
editor = "Donald E. Walker",
title = "{Parsing with Logical Variables}",
month = "February",
year = "1983",
note = "DOI: 10.3115/974194.974206
A revised version of this paper was in the 1987 book Natural Language Parsing Systems, edited by Leonard Bolc. See here..",
pages = "62-68",
booktitle = "Proceedings of the First Conference on Applied Natural Language Processing",
publisher = "Association for Computational Linguistics",
}