@techreport{learn,
 author = {Gerard Collaud and Jacques Pasquier-Rocha and Andreas Meier and Adrian Sieber and Daniel Wismer},
 booktitle = {Internal Working Paper},
 organization = {Department of Informatics, University of Fribourg, Switzerland},
 title = {Learning by Doing and Collaborating: Design and Implementation of Virtual Travel Agencies by Groups of Students},
 year = {2000}
}