@article{MASLO_1975_25_1_a2,
     author = {Gera, Milan},
     title = {Bedingungen f\"ur die {Existenz} oszillatorischer {L\"osungen} der {Gleichung} $x''' +a(t)x''+b(t)x' +c(t)x=0$, $c(t)>= 0$},
     journal = {Mathematica slovaca},
     pages = {23--40},
     year = {1975},
     volume = {25},
     number = {1},
     mrnumber = {0387721},
     zbl = {0316.34031},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1975_25_1_a2/}
}