Olech, C. Approximation of set-valued functions by continuous functions. (English) Zbl 0183.13603 Colloq. Math. 19, 285-293 (1968). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 13 Documents Keywords:functional analysis PDF BibTeX XML Cite \textit{C. Olech}, Colloq. Math. 19, 285--293 (1968; Zbl 0183.13603) Full Text: DOI OpenURL