Almeida Costa, A. Sur la théorie générale des demi-anneaux. I, II. (French) Zbl 0135.02801 Algebre Theorie Nombres, Sem. P. Dubreil, M.-L. Dubreil-Jacotin et C. Pisot 14 (1960/61), No. 24, 17 p.; No. 25, 12 p. (1963). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:general algebraic structures PDF BibTeX XML Full Text: Numdam Numdam EuDML OpenURL