Tymokha, O.M. et al. 2024. Anatolii Naumovych Kochubei (to his75th birthday). Ukrains’kyi Matematychnyi Zhurnal. 76, 8 (Sep. 2024), 1250–1253. DOI:https://doi.org/10.3842/umzh.v76i8.8453.