Rusanov, V.A., Lakeyev, A.V., Daneev, A.V. and Linke, Y. É. 2022. SEMIADDITIVITY OF THE ENTROPY RAYLEIGH-RITZ OPERATOR IN THE PROBLEM OF REALIZATION OF AN INVARIANT POLYLINEAR REGULATOR OF A NON-STATIONARY HYPERBOLIC SYSTEM. Advances in Differential Equations and Control Processes. 27, (May 2022), 181–202. DOI:https://doi.org/10.17654/0974324322020.