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Robot: Opravuji 1 zdrojů and označuji 0 zdrojů jako nefunkční #IABot (v2.0beta8)
 
=== Externí odkazy ===
* [https://web.archive.org/web/20070313105356/http://cache.corbis.com/agent/11/49/88/11498891.jpg Corbis photo with caption: ''Dr. George Henry Peters, of the U.S. Naval Observatory at Washington, with the 46 inch (1.2 m) lens, weighing 150 pounds (68 kg) and capable of taking a photo 195,000,000 miles (314,000,000 km) <!-- what does that mean? --> away, which is to be used to photograph total eclipse of sun on January 24.'']
* [http://adsabs.harvard.edu//full/seri/PASP./0059//0000344.000.html PASP '''59''' (1947) 344] (one paragraph)
 
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