@article{10_21136_CMJ_1979_101608,
     author = {Stan\v{e}k, Svatoslav},
     title = {A note on the oscillation of solutions of the differential equation $y''=\lambda q(t)y$ with a periodic coefficient},
     journal = {Czechoslovak Mathematical Journal},
     pages = {318--323},
     publisher = {mathdoc},
     volume = {29},
     number = {2},
     year = {1979},
     doi = {10.21136/CMJ.1979.101608},
     mrnumber = {529519},
     zbl = {0416.34037},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101608/}
}