On the lattice automorphisms of certain simple algebraic groups
On the lattice automorphisms of and
On the modularity of the lattice of fundamental orders on a semilattice.
On the representation of lattices by subsemigroup lattices of bands.
On the subsemilattices of first-order definable and openly first-order definable congruences of the congruence lattice of a universal algebra.
On the surjectivity of the Ribenboim representation of a lattice ordered group.
On varieties of regular -semigroups
On varieties of regular -semigroups, II
On weak direct product decompositions of lattices and graphs