@techreport{fuhrer:wp:vwimpl,
 author = {Patrik Fuhrer and Jacques Pasquier-Rocha},
 booktitle = {Internal Working Paper},
 month = {July},
 number = {05-14},
 organization = {Department of Informatics, University of Fribourg, Switzerland},
 pdf = {madSecurity.pdf},
 title = {The Challenge of Supporting Distributed MOOs: Main Difficulties and their Solutions within the MaDViWorld Software Framework},
 year = {2005}
}