@article{01332367,
title = {The invariant cone of slowly oscillating solutions to two delay differential equations.},
journal = {Acta Mathematica Universitatis Comenianae. New Series},
volume = {67},
year = {1998},
pages = {335-342},
zbl = {0926.34058},
language = {en},
url = {http://dml.mathdoc.fr/item/01332367}
}
Yousfi, N.; Arino, O. The invariant cone of slowly oscillating solutions to two delay differential equations.. Acta Mathematica Universitatis Comenianae. New Series, Tome 67 (1998) pp. 335-342. http://gdmltest.u-ga.fr/item/01332367/