@article{VMUMM_1994_3_a8,
     author = {V. G. Vil'ke},
     title = {The motion of two coupled pendulums with a spherical cavity filled with a viscous fluid},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {60--66},
     publisher = {mathdoc},
     number = {3},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1994_3_a8/}
}