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Obshchij katalog peremennykh zvezd : vtoroe spetsialʹnoe dopolnenie k tretʹmu izdaniyu = general catalog of variable stars : 2nd special supplement to the 3rd ed
- "Obshchij katalog peremennykh zvezd : vtoroe spetsialʹnoe dopolnenie k tretʹmu izdaniyu = general catalog of variable stars : 2nd special supplement to the 3rd ed"