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RuТеоретическая астрономия. Небесная механика
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On allocating the amounts of equipment and the content of the new Astronomical Observatory of the Imperial Kazan University and on the approval of the states of this observatory.1900 year.
Collection: On allocating the amounts of equipment and the content of the new Astronomical Observatory of the Imperial Kazan University and on the statement of the states of this observatory.1900. (1900)