@misc{10_4153_CMB_1975_014_4,
     title = {On {Semiperfect} {Modules}},
     journal = {Canadian mathematical bulletin},
     pages = {77--80},
     year = {1975},
     volume = {18},
     number = {1},
     doi = {10.4153/CMB-1975-014-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-014-4/}
}