@article{VMUMM_1999_4_a4,
     author = {I. N. Sergeev},
     title = {A formula for the minorant of one of the {Lyapunov} exponents},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {22--29},
     publisher = {mathdoc},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1999_4_a4/}
}