@article{EJDE_2002__2002__a148,
     author = {Lakrib,  Mustapha},
     title = {On the averaging method for differential equations with delay},
     journal = {Electronic journal of differential equations},
     year = {2002},
     volume = {2002},
     zbl = {1010.34075},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a148/}
}