@inproceedings{ESS2003, author = {Gribaudo, G. and Iacono, M. and Mazzocca, M. and Vittorini, V.}, title = {{The OsMoSys/DrawNET Xe! Languages System: A Novel Infrastructure for Multi-Formalism Object-Oriented Modelling}}, booktitle = {{ESS 2003: 15th European Simulation Symposium And Exhibition}}, year = {2003}, location = {Delft, The Netherlands} }