@article{MM2_1991__70_1_155591,
     author = {Budh Nashier and Warren Nichols},
     title = {A note on perfect rings.},
     journal = {Manuscripta mathematica},
     pages = {307--310},
     publisher = {mathdoc},
     volume = {70},
     number = {1},
     year = {1991},
     zbl = {0721.16009},
     url = {http://geodesic.mathdoc.fr/item/MM2_1991__70_1_155591/}
}