%0 Journal Article %A Seppo Heikkilä %T On the method of successive approximations for Volterra integral equations %J Annales Fennici Mathematici %D 1975 %P 39-47 %V 1 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.0103/ %R 10.5186/aasfm.1975.0103 %G en %F AFM_1975_1_1_a4