@article{107091, author = {Vincent \v Solt\'es}, title = {Asymptotic properties of solutions of an $n$-th order nonlinear differential equation with deviating argument}, journal = {Archivum Mathematicum}, volume = {017}, year = {1981}, pages = {59-63}, zbl = {0479.34029}, mrnumber = {672489}, language = {en}, url = {http://dml.mathdoc.fr/item/107091} }
Šoltés, Vincent. Asymptotic properties of solutions of an $n$-th order nonlinear differential equation with deviating argument. Archivum Mathematicum, Tome 017 (1981) pp. 59-63. http://gdmltest.u-ga.fr/item/107091/
Nonoscillation theorems for differential equation with deviating argument, Pacific J. Math., 63 (1976), 185-192. (1976) | MR 0417536