@article{10_4064_ap81_2_1,
     author = {N. Parhi and R. N. Rath},
     title = {On oscillation of solutions of forced nonlinear
  neutral differential equations of higher order {II}},
     journal = {Annales Polonici Mathematici},
     pages = {101--110},
     publisher = {mathdoc},
     volume = {81},
     number = {2},
     year = {2003},
     doi = {10.4064/ap81-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap81-2-1/}
}