@article{00697116,
title = {Estimates for the Cauchy matrix of perturbed linear impulsive equation.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {17},
year = {1994},
pages = {753-758},
doi = {10.1155/S0161171294001055},
zbl = {0810.34009},
language = {en},
url = {http://dml.mathdoc.fr/item/00697116}
}
Simeonov, P.S.; Bajnov, D.D. Estimates for the Cauchy matrix of perturbed linear impulsive equation.. International Journal of Mathematics and Mathematical Sciences, Tome 17 (1994) pp. 753-758. doi : 10.1155/S0161171294001055. http://gdmltest.u-ga.fr/item/00697116/