Title: Glavnai︠a︡ geofizicheskai︠a︡ observatorii︠a︡ im. A.I. Voeĭkova v gody Velikoĭ Otechestvennoĭ voĭny
Subjects: Glavnai︠a︡ geofizicheskai︠a︡ observatorii︠a︡ im. A.I. Voeĭkova, Meteorological stations, Geophysical observatories, History