On Kleene Algebras. - Sinisa Crvenkovic; Rozália Sz. Madarász (Theor. Comput. Sci., 1993)

On Dynamic Algebras. - Sinisa Crvenkovic; Rozália Sz. Madarász (Theor. Comput. Sci., 1994)

On the Partially Ordered Semigroup Generated by the Class Operators I, R, H, S, P. - Rozália Sz. Madarász; Boza Tasic (Order, 2001)