Ehresmann, Charles Les prolongements d’une variété différentiable. V. Covariants différentiels et prolongements d’une structure infinitésimale. (French) Zbl 0046.40802 C. R. Acad. Sci., Paris 234, 1424-1425 (1952). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 18 Documents Keywords:topology PDFBibTeX XMLCite \textit{C. Ehresmann}, C. R. Acad. Sci., Paris 234, 1424--1425 (1952; Zbl 0046.40802)