@article{VMUMM_2010_5_a11,
     author = {M. E. Lipatov},
     title = {Recurrence of matrix cocycles},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {61--64},
     year = {2010},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2010_5_a11/}
}