TY - JOUR AU - P. F. Samusenko TI - Construction of periodic solutions of a nonlinear singularly perturbed system of differential equations with degeneration JO - Differencialʹnye uravneniâ PY - 2006 SP - 756 EP - 763 VL - 42 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2006_42_6_a3/ LA - ru ID - DE_2006_42_6_a3 ER -