Ignatovich, S.Y. 2016. Approximation of autonomous affine control systems in the sense of time optimality and algebraic approximation. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics. 84, (Dec. 2016), 9–21. DOI:https://doi.org/10.26565/2221-5646-2016-84-02.