@inproceedings{TUC-CSCW/BHMP02,
author = "L. Bollen and H. Hoppe and M. Milrad and N. Pinkwart",
title = "Collaborative Modelling in Group Learning Environments",
year = 2002,
booktitle = "Proceedings of the 20th International Conference of the System Dynamics Society (SDS)",
publisher = "System Dynamics Society"
}