Bouligand, G. Propriétés générales des correspondances multiformes. (French) Zbl 0007.05702 C. R. Acad. Sci., Paris 196, 1767-1769 (1933). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:set theory, real functions PDF BibTeX XML Cite \textit{G. Bouligand}, C. R. Acad. Sci., Paris 196, 1767--1769 (1933; Zbl 0007.05702)