@article{10_21136_CPM_1984_118198,
     author = {Pavl{\'\i}kov\'a, Elena},
     title = {A remark on the differential equation $y''+q(x)y=r(x)$},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {86--92},
     publisher = {mathdoc},
     volume = {109},
     number = {1},
     year = {1984},
     doi = {10.21136/CPM.1984.118198},
     mrnumber = {741211},
     zbl = {0562.34022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1984.118198/}
}