. . . "2019" . . . "Nikolay Kovalyov (politician)" . . "Army General Nikolai Dmitrievich Kovalyov" . . "Nikolay Dmitrievich Kovalyov" . . "Nikolay Kovalev" . . . . . . . . "Nikolay Kovalyov" . . . . . . "1949-08-06" . . . . . "2019-04-05" . "Nikolai Kovalyov" . . . . . . "1949" . . . . . . . . . . . . . . . . . . . "Nikolay Kovalyov (politician)" .