- Andrew U. Frank, Irene Campari, Ubaldo Formentini, editors, Theories and Methods of Spatio-Temporal Reasoning in Geographic Space, International Conference GIS - From Space to Territory: Theories and Methods of Spatio-Temporal Reasoning, Pisa, Italy, September 21-23, 1992, Proceedings. Volume 639 of Lecture Notes in Computer Science, Springer, 1992.