Paul Jean Joseph Barbarin (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Paul Jean Joseph Barbarin" in Portuguese language version.

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books.google.com

Halsted, G. B. (novembro de 1908). «Biographical Sketch of Paul Barbarin». The American Mathematical Monthly. 15 (11): 195–196
Halsted, G. B. (16 de setembro de 1904). «The Lobachevsky Prize». Science. 20 (507): 353–367 (report on Barbarin's work, pp. 363–367)
Lobachevsky, Nikolai I. (2010). Pangeometry. [S.l.]: European Mathematical Society. p. 288. ISBN 978-3-03719-087-6; translated and edited by Athanase Papadopoulos

doi.org

dx.doi.org

«Notes». Bulletin of the American Mathematical Society. 38: 481–485. 1932. doi:10.1090/S0002-9904-1932-05456-8 (Ver p. 484.)
Allen, Edward Switzer (1929). «Three books on non-euclidean geometry». Bull. Amer. Math. Soc. 35: 271–276. doi:10.1090/S0002-9904-1929-04726-8 (See pp. 275–276.)

hathitrust.org

babel.hathitrust.org

Halsted, G. B. (1902). «Review of La Géométrie non-euclidienne par P. Barbarin». The American Mathematical Monthly. 9 (6/7): 153–159
Buhl, A. (1902). «critique de livre: Géométrie non euclidienne par P. Barbarin». L'Enseignement mathématique. série 1, tome 4: 223–226