中国科学院数学与系统科学研究院期刊网
AMS
Pseudo-C-rpp Semigroups
Xiao Jiang GUO, Young Bae JUN, Ming ZHAO
Acta Mathematica Sinica . 2010, (4): 629 -646 .  DOI: 10.1007/s10114-010-8030-x