Bernard, Daniel Sur la géométrie différentielle des \(G\)-structures. (French) Zbl 0095.36406 Ann. Inst. Fourier 10, 151-270 (1960). PDF BibTeX XML Cite \textit{D. Bernard}, Ann. Inst. Fourier 10, 151--270 (1960; Zbl 0095.36406) Full Text: DOI Numdam EuDML
Kostant, Bertram Holonomy and the Lie algebra of infinitesimal motions of a Riemannian manifold. (English) Zbl 0066.16001 Trans. Am. Math. Soc. 80, 528-542 (1955). PDF BibTeX XML Cite \textit{B. Kostant}, Trans. Am. Math. Soc. 80, 528--542 (1955; Zbl 0066.16001) Full Text: DOI