Richard Au Mark Looi Paul Ashley Loo Tang Seet Secure Authorisation Agent for Cross-Domain Access Control in a Mobile Computing Environment. 369-381 2001 conf/icisc/2001 ICISC http://link.springer.de/link/service/series/0558/bibs/2288/22880369.htm db/conf/icisc/icisc2001.html#AuLAS01