@article{10_4153_CJM_1976_109_2,
     author = {Nicholson, W. K.},
     title = {Semiregular {Modules} and {Rings}},
     journal = {Canadian journal of mathematics},
     pages = {1105--1120},
     year = {1976},
     volume = {28},
     number = {5},
     doi = {10.4153/CJM-1976-109-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-109-2/}
}