Gambier, Bertrand Surfaces admettant plusierus réseaux conjugues coniques. (French) Zbl 0024.17801 J. Math. Pures Appl., IX. Sér. 19, 63-82 (1940). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:Differential geometry PDFBibTeX XMLCite \textit{B. Gambier}, J. Math. Pures Appl. (9) 19, 63--82 (1940; Zbl 0024.17801)