KonarovskyiV. V., PylypenkoA. Yu., and RiabovG. V. 2023. “Andrii Anatoliyovych Dorogovtsev (on His 60th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 75 (11), 1443 -45. https://doi.org/10.3842/umzh.v75i11.7873.