Penichet, V. M. R.; Gallud, J. A.; Tesoriero, R.; Lozano, M. D.: Design and Evaluation of a Service Oriented Architecture-based Application to Support the Collaborative Edition of UML Class Diagrams. International Conference on Computational Science 2008: ICCS 2008. Lecture Notes in Computer Science, vol. 5103, pp. 389-398, Springer Verlag. June 2008.