@inproceedings{sidner-1978-use-focus, title = "The Use of Focus as a Tool for Disambiguation of Definite Noun Phrases", author = "Sidner, Candace L.", editor = "Waltz, David L.", booktitle = "Theoretical Issues in Natural Language Processing-2", year = "1978", url = "https://preview.aclanthology.org/jlcl-multiple-ingestion/T78-1012/" }