@article{DE_1991_27_10_a2,
     author = {A. K. Demenchuk},
     title = {Quasiperiodic solutions of differential systems with linear independence over $\mathbf Q$ of the frequency bases of the solution and the right-hand side},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1673--1679},
     publisher = {mathdoc},
     volume = {27},
     number = {10},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_10_a2/}
}