Sudeept Bhatnagar Badri Nath Arup Acharya Distributed Admission Control for Heterogeneous Multicast with Bandwidth Guarantees. 115-136 2003 conf/iwqos/2003 IWQoS http://link.springer.de/link/service/series/0558/bibs/2707/27070115.htm db/conf/iwqos/iwqos2003.html#BhatnagarNA03