A theorem on doubly transitive permutation groups with application to universal algebras G. Grätzer — 1964 Fundamenta Mathematicae
On the Concept of Congruence Relation in Partial Algebras. G. Grätzer; G.H. Wenzel — 1967 Mathematica Scandinavica
Infinitary varieties of structures closed under the formation of complex structures G. Grätzer; S. Whitney — 1984 Colloquium Mathematicae
On the number of polynomials of a universal algebra, II G. Grätzer; J. Płonka — 1970 Colloquium Mathematicae
Identities for globals (complex algebras) of algebras G. Grätzer; H. Lakser — 1988 Colloquium Mathematicae
On the number of polynomials of a universal algebra, I G. Grätzer; J. Płonka; A. Sekanina — 1970 Colloquium Mathematicae
An equational basis in four variables for the three-element tournament G. Grätzer; A. Kisielewicz; B. Wolk — 1992 Colloquium Mathematicae
The strong independence theorem for automorphism groups and congruence lattices of finite lattices. Grätzer, G.; Schmidt, E.T. — 1995 Beiträge zur Algebra und Geometrie