@article{10_21136_MB_1992_125910,
     author = {Medve\v{d}, Milan},
     title = {Oscillatory properties of some classes of nonlinear differential equations},
     journal = {Mathematica Bohemica},
     pages = {123--131},
     publisher = {mathdoc},
     volume = {117},
     number = {2},
     year = {1992},
     doi = {10.21136/MB.1992.125910},
     mrnumber = {1165888},
     zbl = {0757.34028},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.1992.125910/}
}