"I︠U︡lev́īch" . "Witte" . "Sergi︠e︡ĭ" . "1849" . "graf Sergi︠e︡ĭ I︠U︡lev́īch Witte" . "Witte, Sergi︠e︡ĭ I︠U︡lev́īch, graf" . "1915" . . . .