Bing, R. H. Retractions onto spheres. (English) Zbl 0117.40604 Am. Math. Mon. 71, 481-484 (1964). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 5 Documents Keywords:topology PDF BibTeX XML Cite \textit{R. H. Bing}, Am. Math. Mon. 71, 481--484 (1964; Zbl 0117.40604) Full Text: DOI