Talk:J. J. L. Duyvendak

External links modified
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I have just modified one external link on J.J.L. Duyvendak. 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/20140904090251/http://bc.ub.leidenuniv.nl/bc/tentoonstelling/Jan_Oort/object7.htm to http://bc.ub.leidenuniv.nl/bc/tentoonstelling/Jan_Oort/object7.htm

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Cheers.— InternetArchiveBot  (Report bug) 14:10, 18 November 2017 (UTC)