TY - JOUR AU - Yu. A. Chirkunov TI - Steady oscillations in a~continuously inhomogeneous medium described by the Ovsyannikov equation JO - Sibirskij žurnal industrialʹnoj matematiki PY - 2010 SP - 131 EP - 140 VL - 13 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SJIM_2010_13_4_a11/ LA - ru ID - SJIM_2010_13_4_a11 ER -