1. ARMENAKIS , C. : 1991 , Report on the Temporal Dimension of Geographical Data . Geographical Services Division , Canada Centre for Mapping, Energy, Mines and Resources Canada .
2. CANADIAN HYDROGRAPHIC SERVICE: 1991 , An approach to handling electronic updates to electronic navigation charts . Unpublished paper from the Department of Fisheries and Oceans, November .
3. HOWARD , D. C. , and BARRY , C. J. : 1991 , Sampling the countryside of Great Britain: G1S for the detection and prediction of rural change . In Proceedings of GIS ‘91, held in Vancouver, British Columbia, in February , ( Canada : Ministry of Supply and Services ), pp. 171 – 176 .
4. A review of temporal database research and its use in GIS applications