"Aleksandr Pu\u0161karenko"@us-armn . "Pu\u0161karenko"@us-armn . "Aleksandr Pu\u0161karenko"@us-armn . "Pu\u0161karenko, Aleksandr (1952)"@us-armn . . . "1952"^^ . "Aleksandr"@us-armn .