@article{ZVMMF_2000_40_7_a3, author = {A. B. Bakushinskii and M. Yu. Kokurin and N. A. Yusupova}, title = {Necessary conditions for the convergence of iterative methods for solving irregular nonlinear operator equations}, journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki}, pages = {986--996}, publisher = {mathdoc}, volume = {40}, number = {7}, year = {2000}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZVMMF_2000_40_7_a3/} }