@inproceedings{mci/Kupka2005,
author = {Kupka, Thomas AND Behrends, Marianne AND Zajaczek, Jan E. W. AND Matthies, Herbert},
title = {Das Open Source Content Management System Schoolbook},
booktitle = {DeLFI 2005: 3. Deutsche e-Learning Fachtagung Informatik, 13. - 16. September 2005 in Rostock, Germany},
year = {2005},
editor = {Haake, Jörg M. AND Lucke, Ulrike AND Tavangarian, Djamshid} ,
pages = { 521-522 },
publisher = {Gesellschaft für Informatik e.V.},
address = {Bonn}
}