@article{IIMI_2002_2_a5,
     author = {T. S. Bykova and E. L. Tonkov},
     title = {On {Lyapunov} reducibility of systems with aftereffect},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {27--30},
     year = {2002},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2002_2_a5/}
}