%0 Journal Article %A K. Balla %T Error estimates in the substitution of the boundedness condition of the solutions for systems of linear ordinary differential equations with a regular singulari %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1978 %P 370-378 %V 18 %N 2 %U http://geodesic.mathdoc.fr/item/ZVMMF_1978_18_2_a9/ %G ru %F ZVMMF_1978_18_2_a9