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- [25] AUTOMORPHISM CLASS GROUP OF CATEGORY OF RINGS OVER AN ARBITRARY COMMUTATIVE BASE RING - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1975, 22 (07): : A703 - A703
- [28] SEMIGROUP RINGS AS PRUFER RINGS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1973, 20 (05): : A475 - A475
- [29] CHAINED RINGS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1975, 22 (01): : A76 - A76
- [30] GEOMETRIC RINGS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1973, 20 (07): : A656 - A656