@article{ARM_1984__20_2_a1,
     author = {Venckov\'a, Magdalena},
     title = {Oscillation of a forced nonlinear differential equation},
     journal = {Archivum mathematicum},
     pages = {59--68},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {1984},
     mrnumber = {784857},
     zbl = {0561.34023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1984__20_2_a1/}
}