@article{DANMA_2020_495_a5,
     author = {A. V. Borisov and P. E. Ryabov and S. V. Sokolov},
     title = {On the existence of focus singularities in one model of a {Lagrange} top with a vibrating suspension point},
     journal = {Doklady Rossijskoj akademii nauk. Matematika, informatika, processy upravleni\^a},
     pages = {26--30},
     year = {2020},
     volume = {495},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DANMA_2020_495_a5/}
}