Horodnii M.F. and Kravets V.P. 2021. Bounded solutions of a second-order difference equation with jumps of operator coefficients. Ukrains’kyi Matematychnyi Zhurnal. 73, 3 (Mar. 2021), 335 - 340. DOI:https://doi.org/10.37863/umzh.v73i3.6058.