%0 Journal Article %A H. L. Turrittin %T Asymptotic expansion of solutions of systems of ordinary linear differential equations containing a parameter %J Matematika %D 1957 %P 29-60 %V 1 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAT_1957_1_2_a2/ %G ru %F MAT_1957_1_2_a2