%0 Journal Article %A W. Kirk %A W. Ray %T Fixed-point theorems for mapping defined on unbounded sets in Banach spaces %J Studia Mathematica %D 1979 %P 127-138 %V 64 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4064/sm-64-2-127-138/ %R 10.4064/sm-64-2-127-138 %G en %F 10_4064_sm_64_2_127_138