@techreport{fuhrer:wp1:SPE, author = {Patrik Fuhrer and Ghita Kouadri Mostéfaoui and Jacques Pasquier-Rocha}, booktitle = {Internal Working Paper}, month = {July}, number = {01-23}, organization = {Department of Informatics, University of Fribourg, Switzerland}, pdf = {madviworld.pdf}, title = {The MaDViWorld Software Framework for Massively Distributed Virtual Worlds: Concepts, Examples and Implementation Solutions}, year = {2001} }