This publication is cited in the following articles:
V. A. Dykhta, “Pozitsionnyi printsip minimuma dlya kvazioptimalnykh protsessov v zadachakh upravleniya s terminalnymi ogranicheniyami”, Izvestiya Irkutskogo gosudarstvennogo universiteta. Seriya Matematika, 19 (2017), 113–128
M. I. Sumin, “Suboptimal control of distributed parameter systems: Normality properties and dual subgradient method”, Comput. Math. Math. Phys., 37:2 (1997), 158–174