@article{DE_1968_4_5_a8,
     author = {I. V. Kamenev},
     title = {Oscillations and boundedness of solutions of a nonlinear second order equation with multiplicatively separated right hand side},
     journal = {Differencialʹnye uravneni\^a},
     pages = {845--849},
     publisher = {mathdoc},
     volume = {4},
     number = {5},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_5_a8/}
}