@article{AM2_1972__8_136280,
     author = {W.K. Nicholson},
     title = {Rings {Whose} {Elements} are {Quasi-Regular} or {Regular.} {(Short} {Communications).}},
     journal = {Aequationes mathematicae},
     pages = {192--193},
     publisher = {mathdoc},
     volume = {8},
     year = {1972},
     url = {http://geodesic.mathdoc.fr/item/AM2_1972__8_136280/}
}