@article{EJDE_2005__2005__a57,
     author = {Phat,  Vu N. and Nam,  Phan T.},
     title = {Exponential stability criteria of linear non-autonomous systems with multiple delays},
     journal = {Electronic journal of differential equations},
     year = {2005},
     volume = {2005},
     zbl = {1075.34074},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a57/}
}