Lukovsky I. A., Makarov V. L., Perestyuk M. O., Timokha A. M., Boichuk O. A., Gutlyanskii V. Ya., Kochubey A. N., Motorny V. P., Golub A. P., DzyubenkoG. A., Kovtunets V. V., Nesterenko O. N., Romanyuk A. S., Serdyuk A. S., and Torbin G. M. 2022. “Ihor Oleksandrovych Shevchuk (on His 75th Birthday)”. Ukrains’kyi Matematychnyi Zhurnal 74 (4), 439 -42. https://doi.org/10.37863/umzh.v74i4.7139.