Columbia subject headings:
Gladkov, Fedor, 1883-1958. Energiia.
Gladkov, Fedor, 1883-1958. T︠S︡ement.
Harvard subject headings:
Gladkov, Fedor Vasilʹevich, 1883-1940. Energiia.
Gladkov, Fedor Vasilʹevich, 1883-1940. T︠S︡ement.
Princeton subject headings: