@article{10_4153_CMB_1979_055_9,
     author = {Nicholson, W. K. and Yaqub, Adil},
     title = {A {Commutattvity} {Theorem} for {Rings} and {Groups}},
     journal = {Canadian mathematical bulletin},
     pages = {419--423},
     year = {1979},
     volume = {22},
     number = {4},
     doi = {10.4153/CMB-1979-055-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1979-055-9/}
}