Bogolyubov, A. N., Mitropolskiy, Y. A., & Pustovoytov, M. O. (1998). On the 85th birthday of Alexandr Yul’evich Ishlinskii. Ukrains’kyi Matematychnyi Zhurnal, 50(10), 1416–1418. Retrieved from https://umj.imath.kiev.ua/index.php/umj/article/view/4827