Стичне коло (Ukrainian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Стичне коло" in Ukrainian language version.

refsWebsite

Global rank Ukrainian rank

1books.google.com

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books.google.com

Actually, point P plus two additional points, one on either side of P will do. See Lamb (on line): Horace Lamb (1897). An Elementary Course of Infinitesimal Calculus. University Press. с. 406.