[1]
AbdullayevF. G., SavchukV. V., SamoilenkoA. M., and SerdyukA. S., “International conference on the mathematical analysis, differential equations, and their applications (MADEA-8) devoted to the 80th birthday of Academician A. M. Samoilenko”, Ukr. Mat. Zhurn., vol. 70, no. 10, pp. 1439-1440, Oct. 2018.