@article{EJDE_2011__2011__a18,
     author = {Muthulakshmi, Velu and Thandapani, Ethiraju},
     title = {Interval criteria for oscillation of second-order impulsive differential equation with mixed nonlinearities},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2011},
     year = {2011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2011__2011__a18/}
}