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- [2] LEFT PERFECT RINGS THAT ARE RIGHT PERFECT AND A CHARACTERIZATION OF STEINITZ RINGS NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 19 (02): : A383 - A384
- [3] RIGHT ALTERNATIVE RINGS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1972, 19 (05): : A576 - &
- [7] RIGHT-BIPOTENT RINGS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1970, 17 (07): : 1067 - &
- [8] A CHARACTERIZATION OF LEFT PERFECT RINGS CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES, 1995, 38 (03): : 382 - 384
- [9] RESTRICTED RIGHT SUBDIRECTLY IRREDUCIBLE RINGS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (05): : A482 - A482