Temporal Relations in Geographic Information Systems: A Workshop at the University of Maine. - Renato Barrera; Andrew U. Frank; Khaled K. Al-Taha (SIGMOD Rec., 1991)

Reasoning about Gradual Changes of Topological Relationships. - Max J. Egenhofer; Khaled K. Al-Taha (Spatio-Temporal Reasoning, 1992)

Bibliography on Spatiotemporal Databases. - Khaled K. Al-Taha; Richard T. Snodgrass; Michael D. Soo (Int. J. Geogr. Inf. Sci., 1994)