Geometric Optimal Control Theory, Collected papers. Dedicated to Mikhail Il'ich Zelikin on the occasion of his 90th birthday, Trudy Mat. Inst. Steklova, 333, ed. L. V. Lokutsievskiy, S. M. Aseev, A. A. Agrachev, R. Hildebrand, 2026 http://mi.mathnet.ru/book2113
