@article{GMJ_1997__4_1_47764,
     author = {Greu\v{s}, M. and Greu\v{s}, M.jun.},
     title = {An oscillation criterion for nonlinear third-order differential equations.},
     journal = {Georgian Mathematical Journal},
     pages = {19--26},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1997},
     zbl = {0878.34025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_1997__4_1_47764/}
}