@incollection{reference/gis/FilhoB08a,
	title = {Unified Modeling Language Extension Mechanisms.},
	author = {Jugurta Lisboa Filho and José Luís Braga},
	booktitle = {Encyclopedia of GIS},
	crossref = {reference/gis/2008},
	editor = {Shashi Shekhar and Hui Xiong},
	pages = {1196-1197},
	publisher = {Springer},
	url = {http://dblp.uni-trier.de/db/reference/gis/gis2008.html#FilhoB08a},
	year = {2008},
	biburl = {http://www.bibsonomy.org/bibtex/2937510be12a8f326ecf3d71be361a0ed/dblp},
	description = {dblp},
	date = {2008-04-14}, ee = {http://dx.doi.org/10.1007/978-0-387-35973-1_1427}, isbn = {978-0-387-30858-6},
	keywords = {dblp }
}