Paulo André da Silva Gonçalves José Ferreira de Rezende Otto Carlos Muniz Bandeira Duarte Guy Pujolle Improving Feedback Merging for Source-Adaptive Layered Multicast Schemes. 77-88 2005 8 Cluster Computing 1 http://www.springerlink.com/index/10.1007/s10586-004-4438-3 db/journals/cluster/cluster8.html#GoncalvesRDP05