@article{DE_1997_33_5_a4,
     author = {I. A. Volkov},
     title = {On the existence of a quasilinear system with a countable set of {Bohl} exponents},
     journal = {Differencialʹnye uravneni\^a},
     pages = {602--605},
     year = {1997},
     volume = {33},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_5_a4/}
}