Cotton, Emile Sur le calcul des invariants différentiels euclidiens d’une surface. (French) Zbl 0024.27803 J. Math. Pures Appl., IX. Sér. 19, 211-220 (1940). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:Differential geometry PDFBibTeX XMLCite \textit{E. Cotton}, J. Math. Pures Appl. (9) 19, 211--220 (1940; Zbl 0024.27803)