Georgios Exarchakos Nick Antonopoulos Resource Sharing Architecture For Cooperative Heterogeneous P2P Overlays. 311-334 2007 15 J. Network Syst. Manage. 3 http://dx.doi.org/10.1007/s10922-007-9069-6 db/journals/jnsm/jnsm15.html#ExarchakosA07