Media type: E-Article Title: Temporal query processing with indefinite information Contributor: van Beek, Peter Published: Elsevier BV, 1991 Published in: Artificial Intelligence in Medicine, 3 (1991) 6, Seite 325-339 Language: English DOI: 10.1016/0933-3657(91)90004-u ISSN: 0933-3657 Origination: Footnote: