@article{CMUC_1981__22_3_a13,
     author = {Yue Chi Ming, Roger},
     title = {On biregular and regular rings},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {595--606},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1981},
     mrnumber = {633587},
     zbl = {0485.16015},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1981__22_3_a13/}
}