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Ru| Author | |
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| Description |
Kovalsky, M.About eclipses / op.M. Kovalsky, prof.Astronomy in Kazan Un-Those.- Kazan: Type.University, 1856. -138 p., 1 l.heck.: Tab .. -.1. People (collection).Electronic Source: PBPlace of Storage Original: RGO
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| Publisher | Тип. Университета |