@article{VMUMM_2011_3_a4,
     author = {M. V. Shamolin},
     title = {A multiparameter family of phase portraits in the dynamics of a rigid body interacting with a medium},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {24--30},
     publisher = {mathdoc},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2011_3_a4/}
}