Talk:Klevtsov–Cassegrain telescope

External links modified
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I have just modified one external link on Klevtsov–Cassegrain telescope. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
 * Added archive https://web.archive.org/web/20090523115325/http://www.telescopes.ru/articles/article1.phtml to http://www.telescopes.ru/articles/article1.phtml

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Cheers.— InternetArchiveBot  (Report bug) 14:07, 11 December 2017 (UTC)