Yurii Dmitrievich Sokolov (on his 100th birthday)

Gorbachuk, M. L., A. Y. Luchka, Y. A. Mitropolskiy, and A. M. Samoilenko. “Yurii Dmitrievich Sokolov (on His 100th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 48, no. 11, Nov. 1996, pp. 1443-5, https://umj.imath.kiev.ua/index.php/umj/article/view/5196.