@article{ARM_1970__6_1_a3,
     author = {Vosmansk\'y, Jarom{\'\i}r},
     title = {Monotonic properties of zeros and extremants of the differential equation $y''+q(t)y=0$},
     journal = {Archivum mathematicum},
     pages = {37--74},
     publisher = {mathdoc},
     volume = {06},
     number = {1},
     year = {1970},
     mrnumber = {0296420},
     zbl = {0239.34014},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/ARM_1970__6_1_a3/}
}