Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1959_2_a5, author = {M. P. Ganin}, title = {Certain inverse boundary problems for higher order elliptic equations}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {59--68}, publisher = {mathdoc}, number = {2}, year = {1959}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1959_2_a5/} }
M. P. Ganin. Certain inverse boundary problems for higher order elliptic equations. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 2 (1959), pp. 59-68. http://geodesic.mathdoc.fr/item/IVM_1959_2_a5/