%0 Journal Article %A Ďurikovič, Vladimír %T On the Uniqueness of Solutions and on the Convergence of Successive Approximations for Certain Initial Problems of Equations of the Higher Orders %J Mathematica slovaca %D 1970 %P 214-224 %V 20 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1970__20_3_a7/ %G en %F MASLO_1970__20_3_a7