Preface. On Discrete Approximations of Continuous Functions with Bounded Second Derivative; G.G. Amanzhaev. On a Property of Perfect Binary Codes; S.V. Avgustinovich. Edge Neighborhoods in Normal Maps; S.V. Avgustinovich, O.V. Borodin. An Upper Bound for the Length of a Snake in the n-Dimensional Unit Cube; P.G. Emel'yanov. Operations and Isometric Embeddings of Graphs Related to the Metric Prolongation Property; T.I. Fedoryaeva. Effective Algorithms for Solving Multi-Level Plant Location Problem; E.Kh. Gimadi. On the Complexity of Realization of Boolean Functions by Circuits over an Infinite Basis; O.M. Kasim-Zade. Dynamic Problems of Choosing Optimal Composition of a System of Technical Tools; Yu.A. Kochetov, M.G. Pashchenko. Lower Bounds in the Problem of Choosing an Optimal Composition of a Two-Level System of Technical Tools; Yu.A. Kochetov, M.G. Pashchenko. On Schedules of a Single Machine Jobs with Processing Times Nonlinear in Time; A.V. Kononov. Problems of Reconstructing Words from Their Fragments and Applications; V.K. Leont'ev. A Vertex Variant of the Kleitman-West Problem; B. List. Regular Graphs Whose Every Edge Belongs to Many Triangles; A.A. Makhnev. On Closed Classes in k-Valued Logic Which Contain a Homogeneous Switching Function; S.S. Marchenkov. Strongly Essential Variables of the Functions of k-Valued Logic; I. Mirchev. On Comparison Between the Sizes of Read-k-Times Branching Programs; E.A. Okol'nishnikova. Some Optimization Problems of Scheduling the Transmission of Messages in a Local Communication Network; A.V. Pyatkin. The Maximum-Weight Traveling Salesman Problem in Finite-Dimensional Real Spaces; A.I. Serdyukov. Nonstrict Vector Summation in the Plane and Its Applications to Scheduling Problems; S.V. Sevast'yanov.Bounds for Approximate Solution of a Scheduling Problem; P.I. Sharygin. On Certain Bounds for the Weight of l- Balanced Boolean Functions; Yu.V. Tarannikov. Spectral Properties of Perfect Binary (n,3)-Codes; A.Yu. Vasile'va. Distributive Coloring of Graph Vertices; V.G. Vizing. Deciphering Threshold Functions of k-Valued Logic; N.Y. Zolotykh, V.N. Shevchenko. Index.