On the Complexity of Realizing Some Systems of the Functions of the Algebra of Logic by Contact and Generalized Contact Circuits. - Sergej A. Lozkin; M. A. Koshkin (FCT, 1987)

On Construction of a Complete System of Compression Functions and on Complexity of Monotone Realization of Threshold Boolean Functions. - Sergej A. Lozkin; A. A. Semenov (FCT, 1987)

Lower Bounds on the Area Complexity of Boolean Circuits. - Juraj Hromkovic; Sergej A. Lozkin; Andrej I. Rybko; Alexander A. Sapozhenko; Nadezda A. Skalikova (Theor. Comput. Sci., 1992)