Koval’chuk TV, Kravets VI, Mohyl’ova VV, Stanzhitskii AN. Application of the method of averaging to the problems of optimal control over functional-differential equations. Ukr. Mat. Zhurn. [Internet]. 2018Feb.25 [cited 2024Apr.19];70(2):206-15. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/1551