@article{00773016, title = {Error estimate for optimality of distributed parameter control problems via duality.}, journal = {Journal of Applied Mathematics and Stochastic Analysis}, volume = {8}, year = {1995}, pages = {177-188}, doi = {10.1155/S1048953395000165}, zbl = {0822.49026}, language = {en}, url = {http://dml.mathdoc.fr/item/00773016} }
Chan, W.L.; Yung, S.P. Error estimate for optimality of distributed parameter control problems via duality.. Journal of Applied Mathematics and Stochastic Analysis, Tome 8 (1995) pp. 177-188. doi : 10.1155/S1048953395000165. http://gdmltest.u-ga.fr/item/00773016/