@article{MASLO_2004__54_4_a4,
     author = {Parhi, N. and Tripathy, A. K.},
     title = {On oscillatory fourth order nonlinear neutral differential equations. {I.}},
     journal = {Mathematica slovaca},
     pages = {389--410},
     publisher = {mathdoc},
     volume = {54},
     number = {4},
     year = {2004},
     mrnumber = {2102291},
     zbl = {1099.34061},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_2004__54_4_a4/}
}