Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1998_28_2a_2, author = {Z. Uzelac and K. Surla}, title = {A higher order approximation to a singular perturbation problem}, journal = {Novi Sad Journal of Mathematics}, pages = {19-31}, publisher = {mathdoc}, volume = {28}, number = {2}, year = {1998}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1998_28_2a_2/} }
Z. Uzelac; K. Surla. A higher order approximation to a singular perturbation problem. Novi Sad Journal of Mathematics, Tome 28 (1998) no. 2. http://geodesic.mathdoc.fr/item/NSJOM_1998_28_2a_2/