@article{10_21136_CMJ_1983_101865,
     author = {Regenda, J\'an},
     title = {On the oscillation of solutions of a class of linear fourth order differential equations},
     journal = {Czechoslovak Mathematical Journal},
     pages = {141--148},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1983},
     doi = {10.21136/CMJ.1983.101865},
     mrnumber = {687427},
     zbl = {0547.34023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1983.101865/}
}