@article{ARM_1975__11_1_a0,
     author = {Bartu\v{s}ek, Miroslav},
     title = {On the distribution of zeros of solutions of some types of differential equation $y''=q(t)y$},
     journal = {Archivum mathematicum},
     pages = {1--24},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1975},
     mrnumber = {0427735},
     zbl = {0342.34017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_1975__11_1_a0/}
}