Artur Gajek Stefan Klink Patrick Reuther Bernd Walter Alexander Weber Bibliographical Meta Search Engine for the Retrieval of Scientific Articles. 458-461 2007 conf/ercimdl/2007 ECDL http://dx.doi.org/10.1007/978-3-540-74851-9_42 db/conf/ercimdl/ecdl2007.html#GajekKRWW07