@article{EJDE_2009__2009__a97,
     author = {Tyagi, Jagmohan and Raghavendra, Venkataramanarao},
     title = {An oscillation criteria for second-order nonlinear differential equations with functional arguments},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2009},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2009__2009__a97/}
}