TY - JOUR AU - N. P. Evlampiev AU - I. E. Filippov TI - Periodic solution of a linear functional equation with variable coefficients JO - Issledovaniya po Prikladnoi Matematike i Informatike PY - 1990 SP - 46 EP - 50 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUIPM_1990_a3/ LA - ru ID - KUIPM_1990_a3 ER -