TY - JOUR AU - S. A. Abramov AU - D. E. Khmelnov TI - On singular points of solutions of linear differential systems with polynomial coefficients JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2012 SP - 3 EP - 21 VL - 17 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2012_17_1_a0/ LA - ru ID - FPM_2012_17_1_a0 ER -