@article{02100321,
title = {Oscillation of solutions for systems of hyperbolic equations of neutral type.},
journal = {Electronic Journal of Differential Equations (EJDE) [electronic only]},
volume = {2004},
year = {2004},
zbl = {1061.35156},
language = {en},
url = {http://dml.mathdoc.fr/item/02100321}
}
Wang, Peiguang; Wu, Yonghong. Oscillation of solutions for systems of hyperbolic equations of neutral type.. Electronic Journal of Differential Equations (EJDE) [electronic only], Tome 2004 (2004) . http://gdmltest.u-ga.fr/item/02100321/