@article{00968631,
title = {On oscillation of solutions of second-order systems of deviated differential equations.},
journal = {Georgian Mathematical Journal},
volume = {3},
year = {1996},
pages = {571-582},
doi = {10.1007/BF02259985},
zbl = {0868.34054},
language = {en},
url = {http://dml.mathdoc.fr/item/00968631}
}
Partsvania, N. On oscillation of solutions of second-order systems of deviated differential equations.. Georgian Mathematical Journal, Tome 3 (1996) pp. 571-582. doi : 10.1007/BF02259985. http://gdmltest.u-ga.fr/item/00968631/