TY - JOUR AU - L. I. Kononenko TI - Conditions for existence of relaxation oscillations in singular systems of low dimension JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2005 SP - 87 EP - 92 VL - 8 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2005_8_3_a9/ LA - ru ID - SJIM_2005_8_3_a9 ER -