Includes bibliographical references.

On a class of models closed with respect to direct products /; Finite automata and the logic of one-place predicates /; Undecidability of the general problems of completeness, decidability and equivalence for propositional calculi /; Ramified coverings of algebraic curves /; The Tate height of points on an abelian variety. Its variants and applications /; On the number of ideal classes and the group of divisor classes /; Extensions with given points of ramification /; On the general theory of radicals in categories /; The lattice of ideals of an object of a category. I /; The lattice of ideals of an object of a category. II /; Regular imbeddings of categories /; Approximation of certain transcendental numbers. I The aproximation of logarithms of algebraic numbers /; Simultaneous approximation of the periods of an elliptic function by algebraic numbers / A. D. Taimanov; B. A. Trahtenbrot; A. V. Kuznecov; Ju. I. Manin; Ju. I. Manin; A. I. Vinogradov; I. R. Safarevic; E. G. Sulgeifer; E. G. Sulgeifer; E. G. Sulgeifer; E. G. Sulgeifer; N. I. Feldman; N. I. Feldman