Columbia subject headings:
Harvard subject headings:
Astronomy--Russia (Federation)--Saint Petersburg--History.
Glavnai︠a︡ astronomicheskai︠a︡ observatorii︠a︡ (Soviet Union)--History.
Princeton subject headings:
Astronomers--Soviet Union--Biography.
Astronomical observatories--Russia (Federation).
Glavnai︠a︡ astronomicheskai︠a︡ observatorii︠a︡ (Soviet Union)