%0 Journal Article %A J. Zabczyk %T On some integral equation %J Colloquium Mathematicum %D 1972 %P 315-318 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-25-2-315-318/ %R 10.4064/cm-25-2-315-318 %G en %F 10_4064_cm_25_2_315_318