@article{VMUMM_1984_6_a20,
     author = {S. V. Bolotin},
     title = {First integrals of systems with gyroscopic forces},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {75--82},
     year = {1984},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1984_6_a20/}
}