@inproceedings { 256,
	title = {Location-based Software Modeling and Analysis: Tropos-based Approach.},
	journal = {27th International Conference on Conceptual Modeling (ER 08)},
	year = {2008},
	month = {20/10/2008},
	publisher = {Springer},
	organization = {Springer},
	address = {Barcelona, Spain},
	author = {Ali, R. and Dalpiaz, F. and Giorgini, P.}
}