门限视觉密码方案的组构造方法
费如纯,王丽娜,张焕国
Group construction method of threshold visual cryptography schemes
Ru-chun FEI,Li-na WANG,Huan-guo ZHANG
通信学报 . 2008, (10): 82 -87 .  DOI: 1000-436X(2008)10-0082-06