@article{DAN_1958_120_6_a2,
     author = {V. A. Kondratiev},
     title = {The zeros of the solutions of equation $y^{(n)}+p(x)y=0$},
     journal = {Doklady Akademii Nauk},
     pages = {1180--1182},
     publisher = {mathdoc},
     volume = {120},
     number = {6},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_120_6_a2/}
}