[1]张玉芬.右π—逆半群的最小群同余[J].济南大学学报(综合版),1995,{4}(04):54-56.

Zhang Yufen. MINIMUM GROUP CONGRUENCE ON RIGHTπ- INVERSE SEMIGROUP. [J]. Journal of University of Jinan(Social Science Edition) (4):54-56(1995)

[1]张玉芬.右π—逆半群的最小群同余[J].济南大学学报(综合版),1995,{4}(04):54-56. DOI：

Zhang Yufen. MINIMUM GROUP CONGRUENCE ON RIGHTπ- INVERSE SEMIGROUP. [J]. Journal of University of Jinan(Social Science Edition) (4):54-56(1995) DOI：