MarchenkoV. O., MitropolskiyYu. A., PogorelovA. V., SamoilenkoA. M., SkrypnikI. V., and KhruslovE. Ya. “Naum Il’ich Akhiezer (on His 100-Th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 53, no. 3 (March 25, 2001): 291-293. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/4250.