Evgeny Rachievich Avakov, Georgii Georgievich Magaril-Il'yaev, “Controllability of difference approximation for a control system with continuous time”, Sb. Math., 213, no. 12, 2022, 1620
Yatong An, Chao Xu, Qun Lin, Ryan Loxton, Kok Lay Teo, 2013 10th IEEE International Conference on Control and Automation (ICCA), 2013, 1403
T. Chambrion, A. Munnier, 2012 American Control Conference (ACC), 2012, 4351
Saber Jafarpour, Andrew D. Lewis, Time-Varying Vector Fields and Their Flows, 2014, 93
Yu. L. Sachkov, E. F. Sachkova, “The structure of abnormal extremals in a sub-Riemannian problem with growth vector”, Sb. Math., 211, no. 10, 2020, 1460
Andy Borum, Timothy Bretl, “Reduction of Sufficient Conditions for Optimal Control Problems With Subgroup Symmetry”, IEEE Trans. Automat. Contr., 62, no. 7, 2017, 3209
Marek Grochowski, “The structure of reachable sets for affine control systems induced by generalized Martinet sub-Lorentzian metrics”, ESAIM: COCV, 18, no. 4, 2012, 1150
Yu. L. Sachkov, E. F. Sachkova, “Sub-Lorentzian Problem on the Heisenberg Group”, Math Notes, 113, no. 1-2, 2023, 159
Laura Poggiolini, Gianna Stefani, “Strong Local Optimality for a Bang–Bang–Singular Extremal: General Constraints”, J Optim Theory Appl, 186, no. 1, 2020, 24
Aleksei P Mashtakov, Yurii L Sachkov, “Extremal trajectories and the asymptotics of the Maxwell time in the problem of the optimal rolling of a sphere on a plane”, Sb. Math., 202, no. 9, 2011, 1347