TY - JOUR AU - Seppo Heikkilä TI - On the method of successive approximations for Volterra integral equations JO - Annales Fennici Mathematici PY - 1975 SP - 39 EP - 47 VL - 1 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.5186/aasfm.1975.0103/ DO - 10.5186/aasfm.1975.0103 LA - en ID - AFM_1975_1_1_a4 ER -