@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.} }