Rusanov, V. A., A. V. Lakeyev, A. V. Daneev, and Yu. É. Linke. 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), 181–202. https://doi.org/10.17654/0974324322020.