David Damm Frank Kurth Christian Fremerey Michael Clausen A Concept for Using Combined Multimodal Queries in Digital Music Libraries. 261-272 2009 ECDL http://dx.doi.org/10.1007/978-3-642-04346-8_26 conf/ercimdl/2009 db/conf/ercimdl/ecdl2009.html#DammKFC09