@article{AUPO_1981__20_1_a13,
     author = {Zeman, Ji\v{r}{\'\i}},
     title = {Zur asymptotischen {Integration} der {Differentialgleichung} $y'' + q(t) y = 0$},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {129--132},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {1981},
     mrnumber = {0645895},
     zbl = {0487.34062},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1981__20_1_a13/}
}