Círculo de nove pontos (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Círculo de nove pontos" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

2^nd place

4^th place

3,479^th place

4,678^th place

1hathitrust.org

441^st place

2,031^st place

1ijgeometry.com

low place

low place

doi.org

dx.doi.org

Kocik, Jerzy (2009). «Disentangling a Triangle». Amer. Math. Monthly. 116: 228–237. doi:10.4169/193009709x470065
Fraivert. «New points that belong to the nine-point circle». The Mathematical Gazette. 103: 222–232. doi:10.1017/mag.2019.53

hathitrust.org

babel.hathitrust.org

Casey, John (1886). Nine-Point Circle Theorem, in A Sequel to the First Six Books of Euclid. Longmans, Green, & Co 4th ed. Londres: [s.n.]

ijgeometry.com

Fraivert. «New applications of method of complex numbers in the geometry of cyclic quadrilaterals» (PDF). International Journal of Geometry. 7: 5–16

maa.org

Kocik, Jerzy (2009). «Disentangling a Triangle». Amer. Math. Monthly. 116: 228–237. doi:10.4169/193009709x470065