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Oct 22, 2014 at 18:36 comment added Alexandre Eremenko @Sam Nead: Thanks! I downloaded Demaine. What is "Quantum"? Is this the English translation of the Russian Kvant journal? Or something else? MSN does not list the journal with such name.
Oct 22, 2014 at 17:04 comment added Sam Nead By the way, the paper "Picture-Hanging Puzzles" by Demaine et al provides a reference for the possible origins of this problem (Spivak in Quantum 1997).
Oct 22, 2014 at 1:17 history made wiki Post Made Community Wiki by Todd Trimble
Oct 21, 2014 at 21:38 history edited Alexandre Eremenko CC BY-SA 3.0
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Oct 21, 2014 at 21:30 history edited Alexandre Eremenko CC BY-SA 3.0
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Oct 21, 2014 at 21:24 history edited Alexandre Eremenko CC BY-SA 3.0
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Oct 21, 2014 at 21:13 history answered Alexandre Eremenko CC BY-SA 3.0