%0 Journal Article %A Józef Piórek %T On integral equations in a Banach space %J Annales Polonici Mathematici %D 1979 %P 111-121 %V 36 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-36-2-111-121/ %R 10.4064/ap-36-2-111-121 %G en %F 10_4064_ap_36_2_111_121