Lukovs’kyi , I. O., O. M. Timocha, O. A. Boichuk, and V. Vasylyk. 2022. “Volodymyr Leonidovych Makarov (on His 80th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 74 (2), 147 -50. https://doi.org/10.37863/umzh.v74i2.7142.