Lagrange, René Sur les systèmes isogonaux de sphères. (French) Zbl 0096.35706 Ann. Sci. Éc. Norm. Supér., III. Sér. 76, 305-399 (1959). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:geometry, analytic geometry, projective geometry PDF BibTeX XML Cite \textit{R. Lagrange}, Ann. Sci. Éc. Norm. Supér. (3) 76, 305--399 (1959; Zbl 0096.35706) Full Text: DOI Numdam EuDML OpenURL