EDITORIALBOARD. International scientific conference “Bogolyubov’s Readings, DIF-2013. Differential Equations, Theory of Functions, and Their Approximations” devoted to the 75th birthday of academician A. M. Samoilenko. Ukrains’kyi Matematychnyi Zhurnal, v. 65, n. 10, p. 1439-1440, 25 Oct. 2013.