Teorema de Poincaré–Birkhoff (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Teorema de Poincaré–Birkhoff" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

3,707^th place

8,617^th place

3,863^rd place

6,060^th place

26^th place

65^th place

encyclopediaofmath.org

Poincaré last theorem. Encyclopedia of Mathematics. - www.encyclopediaofmath.org

Li Yong and Lin Zhenghua; Transactions of the American Mathematical Society, Vol. 347, No. 6 (Jun., 1995), pp. 2111–2126

Brown, M.; Neumann, W. D.; Proof of the Poincaré-Birkhoff fixed point theorem. Michigan Math. J. 24 (1977), no. 1, 21--31. doi:10.1307/mmj/1029001816.