@article{ARM_1986__22_3_a5,
     author = {Bartu\v{s}ek, Miroslav},
     title = {On oscillatory solution of the differential equations of the $n$-th order},
     journal = {Archivum mathematicum},
     pages = {145--156},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1986},
     mrnumber = {868130},
     zbl = {0622.34030},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1986__22_3_a5/}
}