中国科学院数学与系统科学研究院期刊网
The Regular Cryptogroup Construction and Congruence of a Rees Matrix Semigroup over a Clifford Semigroup with Identity
Hong Wei LI
Acta Mathematica Sinica, Chinese Series . 2011, (2): 195 -210 .  DOI: 10.12386/A2011sxxb0021