SamoilenkoA. M. (2009) “Life and work of N. N. Bogolyubov (on his 100th birthday)”, Ukrains’kyi Matematychnyi Zhurnal, 61(8), pp. 1130-1141. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3085 (Accessed: 24November2024).