@inproceedings{P106.251,
author={Poppe, Chris and Wolf, Ingo and Wischnowsky, Sven and De Zutter, Saar and Van de Walle, Rik},
title={Licensing system in an online MPEG-21 environment},
booktitle={Proceedings of the IADIS international conference WWW/internet 2006},
year={2006},
month={10},
volume={II},
pages={315-319},
editor={Isaias, P. and Nues, M. and Martinez, I.},
publisher={IADIS press},
address={Murcia},
}