@inproceedings{ICEIS-v2-2013-RibeiroSFO,
	author        = "Angélica Aparecida de Almeida Ribeiro and Sergio Murilo Stempliuc and Jugurta Lisboa Filho and Italo Lopes Oliveira",
	booktitle     = "{Proceedings of the 15th International Conference on Enterprise Information Systems, Volume 2}",
	doi           = "10.5220/0004451502860293",
	isbn          = "978-989-8565-60-0",
	pages         = "286--293",
	publisher     = "{SciTePress}",
	title         = "{Extending OCL to Specify and Validate Integrity Constraints in UML-GeoFrame Conceptual Data Model}",
	year          = 2013,
}