. . "T︠S︡erkovnikov"@en . "I︠U︡. A. T︠S︡erkovnikov"@en . . "I︠U︡riĭ Aleksandrovich T︠S︡erkovnikov"@en . . "I︠U︡riĭ Aleksandrovich" . "I︠U︡riĭ"@en . "1928-01-05" . "I︠U︡riĭ Aleksandrovich T︠S︡erkovnikov" . "T︠S︡erkovnikov, I︠U︡. A. (I︠U︡riĭ Aleksandrovich)" . "Aleksandrovich"@en . . .