ShuiGuang Deng Zhaohui Wu Zhen Yu Huang Lican A Secure Process-Service Model. 627-630 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3036&spage=627 2004 conf/iccS/2004-1 International Conference on Computational Science db/conf/iccS/iccS2004-1.html#DengWYL04