@ {3119, title = {Web Platform with Role-based Security for Decentralized Creation of Web 2.0 Learning Content}, booktitle = {Proceedings of the 7th International Conference on Next Generation Web Services Practices (NWeSP), 19{\textendash}21 October 2011, Salamanca, Spain, }, year = {2011}, pages = {523-529}, publisher = {IEEE}, isbn = {9781457711251}, doi = {10.1109/nwesp.2011.6088234}, url = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6088234}, author = {A. W{\'o}jtowicz and Krzysztof Walczak and Wojciech Wiza and Dariusz Rumi{\'n}ski} }