Comparative Study of Peer-to-Peer Architectures for Scalable Resource Discovery. - Jeroen Famaey; Jef Donders; Tim Wauters; Frédéric Iterbeke; Niels Sluijs; Bart De Vleeschauwer; Filip De Turck; Piet Demeester; Rudy Stoop (AP2PS, 2009)