Yurii Stephanovych Samoilenko (on his 70th birthday) - Berezansky, Yu. M.; Boichuk О. A.; Gorbachuk, M. L.; Drozd, Yu. A.; Korolyuk, V. S.; Lukovsky, I. O.; Makarov, V. L.; Nikitin, A. G.; Nizhnik, L. P.; Samoilenko, A. M.; Trohimchuk, Yu. Yu; Sharko, V. V.; et al. (Ukrains’kyi Matematychnyi Zhurnal, 2013)