@INPROCEEDINGS{ Bennett97c,
author = {Bennett, B. and Cohn, A. G. and Isli, A.},
title = {A Logical Approach to Incorporating Qualitative Spatial Reasoning into GIS (extended abstract)},
booktitle = {Proceedings of the International COnference on Spatial Information Theory (COSIT)},
year = {1997},
pages = {503--504},
doi = {http://dx.doi.org/10.1007/3-540-63623-4_73},
leeds_file = {COSIT97.ps}
}