There are two lectures given at the International (51st National) Youth School-Conference "Modern problems in mathematics and its applications" (Russia, Ekaterinburg, 2020 February from 3 to 7).
Pontryagin maximum principle and Dubins mathematical car. Lecture 1 (with comments in Russian and English)
Pontryagin maximum principle and Dubins mathematical car. Lecture 2 (with comments in Russian and English)
Valerii Patsko and staff homepage
Страничка Сектора 3 (В.С.Пацко) Отдела динамических систем Института математики и механики Уральского отделения РАН.