@article{10_4153_CJM_1968_011_2,
     author = {Clark, W. Edwin},
     title = {Generalized {Radical} {Rings}},
     journal = {Canadian journal of mathematics},
     pages = {88--94},
     year = {1968},
     volume = {20},
     number = {1},
     doi = {10.4153/CJM-1968-011-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-011-2/}
}