Hyun Suk Lee Hyeog Man Kwon Young Ik Eom Reliable Cascaded Delegation Scheme for Mobile Agent Environments. 55-68 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2908&spage=55 2003 conf/wisa/2003 WISA db/conf/wisa/wisa2003.html#LeeKE03