@article{KYB_1999__35_4_a7,
     author = {Thandapani, E. and Ramuppillai, L.},
     title = {Necessary and sufficient conditions for the oscillation of forced nonlinear second order delay difference equation},
     journal = {Kybernetika},
     pages = {[499]},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {1999},
     mrnumber = {1723577},
     zbl = {1274.39022},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/KYB_1999__35_4_a7/}
}