Bell, P. O.; Foreman, W. C. Euclidean applications of the projective differential geometry of the \(R_\lambda\)-correspondent. (English) Zbl 0063.00291 Ann. Math. (2) 44, 298-314 (1943). Not reviewed Cited in 1 Document PDF BibTeX XML Cite \textit{P. O. Bell} and \textit{W. C. Foreman}, Ann. Math. (2) 44, 298--314 (1943; Zbl 0063.00291) Full Text: DOI