@article{ARM_1997_33_4_a6,
     author = {Bartu\v{s}ek, Miroslav},
     title = {On the structure of oscillatory solutions of a third order differential equation},
     journal = {Archivum mathematicum},
     pages = {323--334},
     year = {1997},
     volume = {33},
     number = {4},
     mrnumber = {1601345},
     zbl = {0914.34027},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1997_33_4_a6/}
}