Zhenyu Wang Qi Feng Rui Xu Zengjie Dou Xin Chen Research on Trusted Access Technology of Grid Resource Based on the Virtual Machine. 1384-1388 2008 ICYCS http://dx.doi.org/10.1109/ICYCS.2008.366 conf/icycs/2008 db/conf/icycs/icycs2008.html#WangFXDC08