TY - JOUR AU - A. Yu. Aleksandrov AU - A. V. Platonov AU - A. A. Kosov TI - On the preservation of instability of mechanical systems under the evolution of dissipative forces JO - The Bulletin of Irkutsk State University. Series Mathematics PY - 2011 SP - 3 EP - 19 VL - 4 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IIGUM_2011_4_3_a0/ LA - ru ID - IIGUM_2011_4_3_a0 ER -