Columbia subject headings:
Tverskai︠a︡ oblastʹ (Russia)--History.
Tverskai︠a︡ oblastʹ (Russia)--Intellectual life.
Harvard subject headings:
Russian literature--20th century
Tverskai︠a︡ oblastʹ (Russia)--Civilization.
Princeton subject headings:
Tverskai︠a︡ oblastʹ (Russia)--History.
Tverskai︠a︡ oblastʹ (Russia)--Intellectual life.