Quasi-nonexpansive multi-valued maps and selections

Wydawnictwa / Czasopisma IMPAN / Fundamenta Mathematicae / Wszystkie zeszyty

Chyi Shiau, Kok-Keong Tan, Chi Wong Fundamenta Mathematicae 87 (1975), 109-119 DOI: 10.4064/fm-87-2-109-119