Columbia subject headings:
Harvard subject headings:
Glavnai︠a︡ astronomicheskai︠a︡ observatorii︠a︡ (Soviet Union)
Glavnai︠a︡ rossiĭskai︠a︡ astronomicheskai︠a︡ observatorii︠a︡.
Princeton subject headings:
Glavnai︠a︡ astronomicheskai︠a︡ observatorii︠a︡ (Pulkovo, Russia)