TY - JOUR AU - L. I. Kononenko TI - On the smoothness of slow surfaces of singularly perturbed systems JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2002 SP - 109 EP - 125 VL - 5 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2002_5_2_a8/ LA - ru ID - SJIM_2002_5_2_a8 ER -