Babenko, V. F., Babenko, V. V., & Polishchuk, M. V. (2015). On the Optimal Recovery of Integrals of Set-Valued Functions. Ukrains’kyi Matematychnyi Zhurnal, 67(9), 1163-1171. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/2055