Columbia subject headings:
Samarin, I︠U︡. Ḟ. (I︠U︡rīĭ Ḟedorovich), 1819-1876.
Harvard subject headings:
Samarin, I︠U︡. Ḟ. (I︠U︡rīĭ Ḟedorovich), 1819-1876.
Princeton subject headings: