Hình cầu đơn vị (Vietnamese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Hình cầu đơn vị" in Vietnamese language version.

refsWebsite

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low place

low place

wikipedia.org

en.wikipedia.org

Takashi Ono (1994) Variations on a Theme of Euler: quadratic forms, elliptic curves, and Hopf maps, chapter 5: Quadratic spherical maps, page 165, Plenum Press, ISBN 0-306-44789-4
F. Reese Harvey (1990) Spinors and calibrations, "Generalized Spheres", page 42, Academic Press, ISBN 0-12-329650-1