P. Newson, и J. Krumm. Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, стр. 336--343. New York, NY, USA, ACM, (2009)
P. Newson, и J. Krumm. Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, стр. 336--343. ACM, (2009)