@article{10_21136_CPM_1986_108157,
     author = {Andres, J\'an},
     title = {On stability and instability of the roots of the oscillatory function in a certain nonlinear differential equation of the third order},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {225--229},
     publisher = {mathdoc},
     volume = {111},
     number = {3},
     year = {1986},
     doi = {10.21136/CPM.1986.108157},
     mrnumber = {853786},
     zbl = {0609.34058},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1986.108157/}
}