Kapustyan , O. V., Stanzhytskyi , O. M. and Fartushny , I. D. (2022) “Averaging method in the problem of optimal control for a perturbed parabolic equation”, Ukrains’kyi Matematychnyi Zhurnal, 74(7), pp. 973 - 979. doi: 10.37863/umzh.v74i7.7016.