@article{MMO_1961_10_a9,
     author = {V. A. Kondrat'ev},
     title = {Oscillatory properties of solutions of the equation $y^{(n)}+p(x)y=0$},
     journal = {Trudy Moskovskogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {419--436},
     publisher = {mathdoc},
     volume = {10},
     year = {1961},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MMO_1961_10_a9/}
}