@inbook{P105.061,
author={Pereira, Fernando and Van de Walle, Rik},
title={Multimedia Content Description in MPEG-7 and MPEG-21},
booktitle={Multimedia Content and the Semantic Web},
year={2005},
month={1},
pages={3-41},
editor={Stamou, G. and Kollias, S.},
publisher={John Wiley & Sons},
}