@article{VUU_2012_4_a11,
     author = {E. N. Pivovarova and T. B. Ivanova},
     title = {Stability analysis of periodic solutions in the problem of the rolling of a~ball with a~pendulum},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {146--155},
     publisher = {mathdoc},
     number = {4},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2012_4_a11/}
}