@article{VSPUI_2011_1_a9,
     author = {A. Yu. Aleksandrov and A. A. Kosov},
     title = {On stability and stabilization of mechanical systems with nonlinear energy sinks},
     journal = {Vestnik Sankt-Peterburgskogo universiteta. Prikladna\^a matematika, informatika, processy upravleni\^a},
     pages = {106--115},
     year = {2011},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSPUI_2011_1_a9/}
}