@article{01884078, title = {Time averaging for functional differential equations.}, journal = {Journal of Applied Mathematics}, volume = {2003}, year = {2003}, pages = {1-16}, doi = {10.1155/S1110757X03203077}, zbl = {1047.34073}, language = {en}, url = {http://dml.mathdoc.fr/item/01884078} }
Lakrib, Mustapha. Time averaging for functional differential equations.. Journal of Applied Mathematics, Tome 2003 (2003) pp. 1-16. doi : 10.1155/S1110757X03203077. http://gdmltest.u-ga.fr/item/01884078/