@article{AUPO_1979__18_1_a4,
     author = {Ho\v{s}ek, Josef},
     title = {\"Uber einige {Eigenschaften} der {Separation} der {Nullstellen} von {L\"osungen} der {Gleichung} $y''=Q(t)y$ und der sie begleitenden {Gleichungen}},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {43--50},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1979},
     mrnumber = {0589846},
     zbl = {0437.34027},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1979__18_1_a4/}
}