. . . . "1903-12-28" . . "Fyodor Karlov" . . . . . . . . . . . "Nikolai Fyodorovich Fyodorov" . . . . . . . . . . "N. F. Fyodorov" . . . . . . . . . . "Fyodorov" . "Fedorov" . . . . . "Nikolai Fyodorov" . "Nikolai Federov" . . . . . . . "Fyodor Mikhailov" . . . . . . . . . . . . . . . . . . . . . . "Fyodor Fyodorov" . . . . "Fyodorovian" . "Nikolai Fyodorovich Fyodorov" . "Nikolai Fedorov" . "Nikolay Fyodorov" . . . . . . . . . . "1829" . "1829-06-09" . . . . . . . . . . . . "1903" . .