Voir la notice de l'article provenant de la source The Polish Digital Mathematics Library
@article{CC_2009_38_4B_a1, author = {Dontchev, Asen L. and Veliov, Vladimir M.}, title = {Metric regularity under approximations}, journal = {Control and Cybernetics}, pages = {1283--1303}, publisher = {mathdoc}, volume = {38}, number = {4B}, year = {2009}, zbl = {1236.49071}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CC_2009_38_4B_a1/} }
Dontchev, Asen L.; Veliov, Vladimir M. Metric regularity under approximations. Control and Cybernetics, Tome 38 (2009) no. 4B, pp. 1283-1303. http://geodesic.mathdoc.fr/item/CC_2009_38_4B_a1/