Columbia subject headings:
Harvard subject headings:
Bednyĭ, Demʹi︠a︡n, 1883-1945--Friends and associates.
Lenin, Vladimir Ilʹich, 1870-1924--Friends and associates.
Princeton subject headings:
Bednyĭ, Demʹi︠a︡n, 1883-1945.
Lenin, Vladimir Ilʹich, 1870-1924.
Poets, Russian--20th century--Biography.