@article{00147586,
title = {A wave equation with discontinuous time delay.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {15},
year = {1992},
pages = {781-788},
doi = {10.1155/S0161171292001017},
zbl = {0766.35024},
language = {en},
url = {http://dml.mathdoc.fr/item/00147586}
}
Wiener, Joseph; Debnath, Lokenath. A wave equation with discontinuous time delay.. International Journal of Mathematics and Mathematical Sciences, Tome 15 (1992) pp. 781-788. doi : 10.1155/S0161171292001017. http://gdmltest.u-ga.fr/item/00147586/