Equation xy = yx (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Equation xy = yx" in English language version.

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books.google.com

Sved, Marta (1990). "On the Rational Solutions of x^y = y^x" (PDF). Mathematics Magazine. 63: 30–33. doi:10.1080/0025570X.1990.11977480. Archived from the original (PDF) on 2016-03-04.
Hausner, Alvin (November 1961). "Algebraic Number Fields and the Diophantine Equation mⁿ = n^m". The American Mathematical Monthly. 68 (9): 856–861. doi:10.1080/00029890.1961.11989781. ISSN 0002-9890.

Lóczi, Lajos. "On commutative and associative powers". KöMaL. Archived from the original on 2002-10-15. Translation of: "Mikor kommutatív, illetve asszociatív a hatványozás?" (in Hungarian). Archived from the original on 2016-05-06.
Singmaster, David. "Sources in recreational mathematics: an annotated bibliography. 8th preliminary edition". Archived from the original on April 16, 2004.{{cite web}}: CS1 maint: unfit URL (link)
Sved, Marta (1990). "On the Rational Solutions of x^y = y^x" (PDF). Mathematics Magazine. 63: 30–33. doi:10.1080/0025570X.1990.11977480. Archived from the original (PDF) on 2016-03-04.
"21st Putnam 1960. Problem B1". 20 Oct 1999. Archived from the original on 2008-03-30.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

Hausner, Alvin (November 1961). "Algebraic Number Fields and the Diophantine Equation mⁿ = n^m". The American Mathematical Monthly. 68 (9): 856–861. doi:10.1080/00029890.1961.11989781. ISSN 0002-9890.