@article{DAN_1968_180_3_a2,
     author = {G. A. Krasinskii},
     title = {Parametric resonance in canonical systems of linear differential equations with quasiperiodic coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {526--529},
     publisher = {mathdoc},
     volume = {180},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_3_a2/}
}