TY - JOUR AU - V. D. Shmatkov TI - Expansion of matrix functions into trigonometric series JO - Fundamentalʹnaâ i prikladnaâ matematika PY - 2016 SP - 241 EP - 245 VL - 21 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FPM_2016_21_1_a19/ LA - ru ID - FPM_2016_21_1_a19 ER -