Columbia subject headings:
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Influence--Congresses.
Lenin, Vladimir Ilʹich, 1870-1924. Testament of Lenin--Congresses.
Princeton subject headings:
Lenin, Vladimir Ilʹich, 1870-1924--Correspondence--Congresses.
Lenin, Vladimir Ilʹich, 1870-1924--Influence--Congresses.