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Problemy postroenii︠a︡ koordinatnykh sistem v astronomii : posvi︠a︡shchaetsi︠a︡ 150-letii︠u︡ Pulkovskoĭ observatorii
- "Problemy postroenii︠a︡ koordinatnykh sistem v astronomii : posvi︠a︡shchaetsi︠a︡ 150-letii︠u︡ Pulkovskoĭ observatorii"