Columbia subject headings:
Kovalevskai︠a︡, S. V. (Sofʹi︠a︡ Vasilʹevna), 1850-1891--Congresses.
Mathematics--Congresses.
Women in mathematics--Congresses.
Harvard subject headings:
Kovalevskai︠a︡, S. V. (Sofʹi︠a︡ Vasilʹevna), 1850-1891--Congresses.
Mathematics--Congresses.
Women in mathematics--Congresses.
Princeton subject headings:
Kovalevskai︠a︡, S. V. (Sofʹi︠a︡ Vasilʹevna), 1850-1891--Congresses.
Mathematics--Congresses.
Women in mathematics--Congresses.