Pedro García López, Antonio F. Gómez Skarmeta, Jose Jaime Meseguer, Jesus Ibáñez.
En Proceedings of the Euromedia 99 International Conference on Web Technology, New Media, Communications and Telematics Theory, Methods, Tools and Applications (Society for Computer Simulation Europe SCS). ISBN: 1-56555-169-9.
Munich (Alemania) Marzo 1999.