TY  - JOUR
AU  - H. L. Turrittin
TI  - Asymptotic expansion of solutions of systems of ordinary linear differential equations containing a parameter
JO  - Matematika
PY  - 1957
SP  - 29
EP  - 60
VL  - 1
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAT_1957_1_2_a2/
LA  - ru
ID  - MAT_1957_1_2_a2
ER  -