@article{04142519,
title = {On stability and boundedness of solutions of a certain fourth-order delay differential equation.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {12},
year = {1989},
pages = {589-602},
doi = {10.1155/S0161171289000724},
zbl = {0697.34063},
language = {en},
url = {http://dml.mathdoc.fr/item/04142519}
}
Okoronkwo, Emmanuel O. On stability and boundedness of solutions of a certain fourth-order delay differential equation.. International Journal of Mathematics and Mathematical Sciences, Tome 12 (1989) pp. 589-602. doi : 10.1155/S0161171289000724. http://gdmltest.u-ga.fr/item/04142519/