@misc{Callan03,
	Author = {Jamie Callan, Alan Smeaton, Micheline Beaulieu, Pia Borlund, Peter Brusilovsky, Matthew Chalmers, Clifford Lynch, John Riedl, Barry Smyth, Umberto Straccia, Elaine Toms },
	url = {\url{http://www.ercim.eu/publication/ws-proceedings/Delos-NSF/Personalisation.pdf}},
	Publisher = {ERCIM},
	Title = {Personalisation and Recommender Systems in Digital Libraries. Joint NSF-EU DELOS Working Group Report},
	Year = {2003}}