Tomoya Enokido Makoto Takizawa Autonomic Group Protocol for Peer-to-Peer (P2P) Systems. 87-97 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3180&spage=87 2004 conf/dexa/2004 DEXA db/conf/dexa/dexa2004.html#EnokidoT04