@article{00032733,
title = {Existence of oscillatory solutions for functional differential equations of neutral type.},
journal = {Acta Mathematica Universitatis Comenianae. New Series},
volume = {60},
year = {1991},
pages = {185-194},
zbl = {0745.34067},
language = {en},
url = {http://dml.mathdoc.fr/item/00032733}
}
Jaroš, J.; Kusano, T. Existence of oscillatory solutions for functional differential equations of neutral type.. Acta Mathematica Universitatis Comenianae. New Series, Tome 60 (1991) pp. 185-194. http://gdmltest.u-ga.fr/item/00032733/