TY - JOUR AU - V. V. Ivlev AU - E. Grjibovskaya TI - Systems of Linear Differential Equations. Integrable Combinations. Part I JO - Matematičeskoe obrazovanie PY - 2006 SP - 2 EP - 9 VL - 36 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MO_2006_36_1_a0/ LA - ru ID - MO_2006_36_1_a0 ER -