The subalgebra lattice of a Heyting algebra Luc Vrancken-Mawet, Georges Hansoul (1987) Czechoslovak Mathematical Journal
The variety generated by tournaments Jaroslav Ježek, P. Marković, M. Maróti, R. McKenzie (1999) Acta Universitatis Carolinae. Mathematica et Physica
The weak subalgebra lattice of a unary partial algebra of a given infinite unary type Konrad Pióro (2001) Mathematica Slovaca
Tolerance distributive and tolerance Boolean varieties of semigroups Bedřich Pondělíček (1986) Czechoslovak Mathematical Journal
Tolerance distributive and tolerance modular varieties of commutative semigroups Bedřich Pondělíček (1986) Czechoslovak Mathematical Journal
Tolerance lattice of algebras with restricted similarity type Ivan Chajda (1995) Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica
Tolerance modular varieties of semigroups Bedřich Pondělíček (1990) Czechoslovak Mathematical Journal
Tolerance numbers, congruence n -permutability and BCK-algebras James G. Raftery, Teo Sturm (1992) Czechoslovak Mathematical Journal
Tolerances and congruences on implication algebras Ivan Chajda, Bohdan Zelinka (1988) Czechoslovak Mathematical Journal
Tolerances and orderings on semilattices Ivan Chajda, Juhani Nieminen, Bohdan Zelinka (1983) Archivum Mathematicum
Tolerances, covering systems, and the axiom of choice George Grätzer, Günter H. Wenzel (1989) Archivum Mathematicum