@article{AUPO_1978__17_1_a2,
     author = {Laitoch, Miroslav},
     title = {A modification of the {Sturm's} theorem on separating zeros of solutions of a linear differential equation of the 2nd order},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {27--33},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {1978},
     mrnumber = {0554033},
     zbl = {0429.34011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1978__17_1_a2/}
}