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2. Arlav G Preserving the Time Dimension In Information Systems DS-WP 83-12-06 Decision Sciences Dept Unlv of Penn December 1983 (Ph D Dissertation) Arlav G Preserving the Time Dimension In Information Systems DS-WP 83-12-06 Decision Sciences Dept Unlv of Penn December 1983 (Ph D Dissertation)
3. Arlav G Beller A and Morgan H L A Temporal Model DS-WP 82-12-05 Decision Sciences Dept Unlv of Penn December 1984 Arlav G Beller A and Morgan H L A Temporal Model DS-WP 82-12-05 Decision Sciences Dept Unlv of Penn December 1984
4. Ben-Zvi J The Time Relational Model Ph D Th Dept of Computer Science University of California Los Angeles 1982 (Unpublished) Ben-Zvi J The Time Relational Model Ph D Th Dept of Computer Science University of California Los Angeles 1982 (Unpublished)