Changqin Huang Guanghua Song Yao Zheng Deren Chen An Authorization Architecture Oriented to Engineering and Scientific Computation in Grid Environments. 461-472 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3189&spage=461 2004 conf/aPcsac/2004 Asia-Pacific Computer Systems Architecture Conference db/conf/aPcsac/aPcsac2004.html#HuangSZC04