@article{GMJ_2003__10_4_51074,
     author = {Wang, Qi-Ru},
     title = {Oscillation criteria for second-order nonlinear differential equations with damping term.},
     journal = {Georgian mathematical journal},
     pages = {771--784},
     year = {2003},
     volume = {10},
     number = {4},
     zbl = {1052.34041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2003__10_4_51074/}
}