(Nguồn: https://www.openculture.com/2015/04/shortest-known-paper-in-a-serious-math-journal.html)
Nguồn tham khảo:
- https://www.openculture.com/2015/04/shortest-known-paper-in-a-serious-math-journal.html
- https://www.numberphile.com/videos/the-shortest-ever-papers
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