Napkin ring problem (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Napkin ring problem" in English language version.

refsWebsite

Global rank English rank

6^th place

6^th place

archive.org (Global: 6^th place; English: 6^th place)

Smith, David E.; Mikami, Yoshio (1914), A History of Japanese Mathematics, Open Court, pp. 121–123, ISBN 0-486-43482-6 {{citation}}: ISBN / Date incompatibility (help).