Harold Knox-Shaw and the Helwan Observatory.
| Autor: | Shears, Jeremy1 bunburyobservatory@hotmail.com, Shaker, Ashraf Ahmed2 shaker@nriag.sci.eg |
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| Zdroj: | Journal of the British Astronomical Association. Apr2015, Vol. 125 Issue 2, p80-93. 14p. |
| Databáze: | Academic Search Ultimate |
| Externí odkaz: |
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