Columbia subject headings:
Harvard subject headings:
Kovalevskai︠a︡, S. V. (Sofʹi︠a︡ Vasilʹevna), 1850-1891
Princeton subject headings:
Kovalevskai︠a︡, S. V. (Sofʹi︠a︡ Vasilʹevna), 1850-1891.