1. Sumin, M.I., Regularized parametric Kuhn–Tucker theorem in a Hilbert
space, Comput. Math. Math. Phys., 2011, vol. 51, no. 9,
pp. 1489–1509.
2. Sumin, M.I., Regularized Lagrange principle and Pontryagin maximum
principle in optimal control and inverse problems, Tr. Inst. Mat.
Mekhyu Ural. Otd. Ross. Akad. Nauk, 2019, vol. 25, no. 1,
pp. 279–296.
3. Alekseev, V.M., Tikhomirov, V.M., and Fomin, S.V., Optimal’noe upravlenie (Optimal Control), Moscow: Nauka,
1979.
4. Tikhonov, A.N. and Arsenin, V.Ya., Metody resheniya nekorrektnykh
zadach (Methods for Solving Ill-Posed Problems), Moscow:
Nauka, 1986.
5. Vasil’ev, F.P., Metody optimizatsii
(Optimization Methods), Moscow: MTsNMO, 2011.