Lattices of partially local Fitting classes.
Lattices of quasiorders on universal algebras
Local polynomial functions on lattices and universal algebras
Modularity and distributivity of tolerance lattices of commutative inverse semigroups
Non-modular congruence lattices of Rees matrix semigroups
Nonstandard implication algebras
O jednom pěkném algebraickém výsledku
On a characterization of the lattice of subsystems of a transition system.
On a problem of Pastijn and Petrich.
On a question of K. Leeb
On congruence lattices in a category
On congruence lattices of regular semigroups with Q-inverse transversals.
On finite lattices which are embeddable in subsemigroup lattices.
On indecomposable representations of quivers with zero-relations
On infinite partition representations and their finite quotients
On isomorphisms of graphs of lattices
On Jónsson's theorem
A proof of Jonsson's theorem inspired by considering a natural topology on algebraic lattices is given.
On lattices determined up to isomorphisms by their graphs
On lattices embeddable into subsemigroup lattices. III: Nilpotent semigroups.
On lattices embeddable into subsemigroup lattices. V. Trees.