Brandt Extensions and Primitive Topological Inverse Semigroups. - Tetyana Berezovski; Oleg Gutik; Kateryna Pavlyk (Int. J. Math. Math. Sci., 2010)

On Chains in H-Closed Topological Pospaces. - Oleg Gutik; Dusan Pagon; Dusan Repovs (Order, 2010)