00768nam0-22002531i-450-990001207950403321000120795FED01000120795(Aleph)000120795FED0100012079520000920d1986----km-y0itay50------baengAlgebra, mathematical logic, number theory, topologyEditor I.M. Vinogradov.U.S.A.American Mathematical Society1986Proceedings of the Stelkov Institute of Mathematics168/ITUNINARICAUNIMARCBK990001207950403321114-B-644113MA1MA1Algebra, mathematical logic, number theory, topology343787UNINAING01