Boltyanskij, V. G. Homotopical classification of vector fields. (Russian) Zbl 0079.16905 Dokl. Akad. Nauk SSSR 118, 13-16 (1958). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Keywords:Topology PDF BibTeX XML Cite \textit{V. G. Boltyanskij}, Dokl. Akad. Nauk SSSR 118, 13--16 (1958; Zbl 0079.16905)