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- [2] WITT RING AND LOCAL RING COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE A, 1971, 272 (26): : 1691 - &
- [6] HARRISONS WITT RING OF A COMMUTATIVE RING NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1971, 18 (01): : 111 - +
- [7] REDUCED WITT RING OF A FORMALLY REAL FIELD NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1976, 23 (01): : A60 - A60
- [9] POWERS OF THE AUGMENTATION IDEAL IN THE WITT RING OF A FIELD PUBLICATIONES MATHEMATICAE-DEBRECEN, 1981, 28 (1-2): : 75 - 77