https://wiki.math.wisc.edu/index.php?title=File:Bertrand.jpg&feed=atom&action=historyFile:Bertrand.jpg - Revision history2024-03-28T16:48:10ZRevision history for this page on the wikiMediaWiki 1.39.5https://wiki.math.wisc.edu/index.php?title=File:Bertrand.jpg&diff=380&oldid=prevYnagel at 19:56, 27 July 20102010-07-27T19:56:52Z<p></p>
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