In a book or article, how should I reference a helpful reply on mathoverflow? Can I give the web reference to the question? If so, in what form? I would rather do this than the catch all `personal communication', which is never very helpful and also does not acknowledge the role of mathoverflow itself.

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    $\begingroup$ Are you happy with the results of the 'cite' button that appears below the post? There's also the 'share' functionality for linking. $\endgroup$ – Todd Trimble Nov 20 '15 at 12:43
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    $\begingroup$ See meta.mathoverflow.net/questions/1631/… (note that the cite-link moved though) More generally see the questions tagged citations. $\endgroup$ – user9072 Nov 20 '15 at 13:05
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    $\begingroup$ Note that the share-features creates a personalized link that contains your userID; for citations you might want to omit this last bit. $\endgroup$ – user9072 Nov 20 '15 at 13:07
  • $\begingroup$ @quid: And miss the opportunity for a Publicist badge earned through Annals of Mathematics? :-) $\endgroup$ – Asaf Karagila Nov 20 '15 at 13:08
  • $\begingroup$ @Asaf: well, I said "might." :-) Mainly I said it as some claimed to find this feature borderline dangerous. So I felt like issuing a warning. $\endgroup$ – user9072 Nov 20 '15 at 13:11
  • $\begingroup$ OK, I see that there was an answer - thanks for pointing it out. $\endgroup$ – Edwin Beggs Nov 20 '15 at 13:36

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