Modern Analysis and Applications The Mark Krein Centenary Conference Volume 1: Operator Theory and Related Topics - Adamyan, Vadim M.; Gohberg, Israel; Kochubei, Anatoly; Popov, Gennadiy; Berezansky, Yurij; Gorbachuk, Myroslav; Gorbachuk, Valentyna; Langer, Heinz (Birkhäuser Basel, 2009)