Semi-categorical algebras. I. Semi-primal algebras. Alfred L. Foster; Alden Pixley — 1964 Mathematische Zeitschrift
Algebraic and Equational Semi-Maximality; Equational Spectra: I. Alfred L. Foster; Alden Pixley — 1966 Mathematische Zeitschrift
Total Algebras and Weak Independence. I. Alfred L. Foster; Alden Pixley — 1971 Mathematische Zeitschrift
Functionally Complete Algebras Generating Distributive and Permutable Classes. Alden F. Pixley — 1970 Mathematische Zeitschrift
Algebraic and Equational Semi-Maximality; Equational Spectra. II. Alfred L. Foster; Alden F. Pixley — 1966 Mathematische Zeitschrift
Polynomial Interpolation and the Chinese Remainder Theorem for Algebraic Systems. Alden F. Pixley; Kirby A. Baker — 1975 Mathematische Zeitschrift
Total Algebras and Weak Independence. II. Alfred L. Foster; Alden F. Pixley — 1972 Mathematische Zeitschrift