%0 Journal Article %A Nicholson, W. K. %T Semiregular Modules and Rings %J Canadian journal of mathematics %D 1976 %P 1105-1120 %V 28 %N 5 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-109-2/ %R 10.4153/CJM-1976-109-2 %F 10_4153_CJM_1976_109_2