@article{04004815, title = {Quasi-adjoint third order difference equations: Oscillatory and asymptotic behavior.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {9}, year = {1986}, pages = {781-784}, doi = {10.1155/S0161171286000947}, zbl = {0619.39004}, language = {en}, url = {http://dml.mathdoc.fr/item/04004815} }
Smith, B. Quasi-adjoint third order difference equations: Oscillatory and asymptotic behavior.. International Journal of Mathematics and Mathematical Sciences, Tome 9 (1986) pp. 781-784. doi : 10.1155/S0161171286000947. http://gdmltest.u-ga.fr/item/04004815/