@inproceedings{BKHS09a,
 author = {Berndt, Rene and Krottmaier, Harald and Havemann, Sven and Schreck, Tobias},
 booktitle = {Proc. Int. Conference on Electronic Publishing},
 note = {Abstract-reviewed paper, online publication},
 organization = {AePIC},
 title = {The PROBADO-framework: Content-based queries for non-textual documents},
 year = {2009}
}