Hardness Results for Multicast Cost Sharing
Joan Feigenbaum, Arvind Krishnamurthy, Rahul Sami, and Scott Shenker.
Theoretical Computer Science 304 (2003).
(Extended abstract appeared in the Proceedings of the 2002 Conference
on Foundations
of Software Technology and Theoretical Computer Science (FSTTCS '02).)
[Abstract]
[Postscript]