Isaac G. Councill C. Lee Giles Ernesto Di Iorio Marco Gori Marco Maggini Augusto Pucci Towards Next Generation CiteSeer: A Flexible Architecture for Digital Library Deployment. 111-122 2006 conf/ercimdl/2006 ECDL http://dx.doi.org/10.1007/11863878_10 db/conf/ercimdl/ecdl2006.html#CouncillGIGMP06