@article{01180639, title = {Asymptotic theory for a critical case for a general fourth-order differential equation.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {21}, year = {1998}, pages = {479-488}, doi = {10.1155/S0161171298000684}, zbl = {0904.34044}, language = {en}, url = {http://dml.mathdoc.fr/item/01180639} }
Al-Hammadi, A.S.A. Asymptotic theory for a critical case for a general fourth-order differential equation.. International Journal of Mathematics and Mathematical Sciences, Tome 21 (1998) pp. 479-488. doi : 10.1155/S0161171298000684. http://gdmltest.u-ga.fr/item/01180639/