Leonіd Andrіyovich Pastur (on his 70th birthday) - Baryakhtar, V. G.; Berezansky, Yu. M.; Korolyuk, V. S.; Marchenko, V. O.; Mitropolskiy, Yu. A.; Samoilenko, A. M.; Khruslov, E. Ya. (Ukrains’kyi Matematychnyi Zhurnal, 2007)