@article{01814790,
title = {Conditions for convergence of the fundamental matrix of linear time-invariant time-delayed singular systems.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {30},
year = {2002},
pages = {463-475},
doi = {10.1155/S016117120201178X},
zbl = {1018.93017},
language = {en},
url = {http://dml.mathdoc.fr/item/01814790}
}
Saric, Branko. Conditions for convergence of the fundamental matrix of linear time-invariant time-delayed singular systems.. International Journal of Mathematics and Mathematical Sciences, Tome 30 (2002) pp. 463-475. doi : 10.1155/S016117120201178X. http://gdmltest.u-ga.fr/item/01814790/