@article{DE_1969_5_11_a2,
     author = {V. M. Millionshchikov},
     title = {A proof of the existence of nonregular systems of linear differential equations with quasiperiodic coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1979--1983},
     publisher = {mathdoc},
     volume = {5},
     number = {11},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_11_a2/}
}