Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1983_34_6_a8, author = {M. D. Madatov}, title = {Problems with control in the coefficients of {Elliptic} equations}, journal = {Matemati\v{c}eskie zametki}, pages = {873--882}, publisher = {mathdoc}, volume = {34}, number = {6}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1983_34_6_a8/} }
M. D. Madatov. Problems with control in the coefficients of Elliptic equations. Matematičeskie zametki, Tome 34 (1983) no. 6, pp. 873-882. http://geodesic.mathdoc.fr/item/MZM_1983_34_6_a8/