Columbia subject headings:
Harvard subject headings:
Aksakov, I. S. (Ivan Sergeevich), 1823-1886--Correspondence.
Russia--Intellectual life--1801-1917--Sources.
Samarin, I︠U︡. Ḟ. (I︠U︡rīĭ Ḟedorovich), 1819-1876--Correspondence.
Princeton subject headings:
Aksakov, I. S. (Ivan Sergeevich), 1823-1886--Correspondence.
Russia--Intellectual life--1801-1917--Sources.
Samarin, I︠U︡. Ḟ. (I︠U︡rīĭ Ḟedorovich), 1819-1876--Correspondence.
Slavophilism--Russia--History--19th century--Sources.