Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1971_11_a5, author = {B. G. Gabdulkhaev}, title = {Direct methods of solution of certain operator {equations.~I}}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {33--44}, publisher = {mathdoc}, number = {11}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1971_11_a5/} }
B. G. Gabdulkhaev. Direct methods of solution of certain operator equations.~I. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (1971), pp. 33-44. http://geodesic.mathdoc.fr/item/IVM_1971_11_a5/