Forma (figura) (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Forma (figura)" in Portuguese language version.

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Hubbard, John H.; West, Beverly H. (1995). Differential Equations: A Dynamical Systems Approach. Part II: Higher-Dimensional Systems. Col: Texts in Applied Mathematics (em inglês). 18. [S.l.]: Springer. p. 204. ISBN 978-0-387-94377-0

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Kendall, D.G. (1984). «Shape Manifolds, Procrustean Metrics, and Complex Projective Spaces». Bulletin of the London Mathematical Society (em inglês). 16 (2). pp. 81–121. doi:10.1112/blms/16.2.81