. . . "Nikolai Nikolayevich Pokrovsky" . . . . . . . . "Pokrovsky" . . . . . . . . "Nikolai Posokhin" . . . . . . . . . "Nikolai Pokrovsky" . . "1865" . "1865-01-27" . "Vladimir Pokrovsky" . . . . . . . . "1930" . . . "1930-12-12" . . . "Nikolai Pokrovsky" .