Danica Damljanovic Udo Kruschwitz M-Dyaa Albakour Using virtual documents to move information retrieval and knowledge management closer together. 3-4 2011 ESAIR http://doi.acm.org/10.1145/2064713.2064717 conf/cikm/2011esair db/conf/cikm/esair2011.html#DamljanovicKA11