@article{IVM_1978_3_a16,
     author = {I. N. Maiboroda and G. A. Shportyuk},
     title = {A~method for two-sided approximation of the solutions of operator equations},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {116--119},
     publisher = {mathdoc},
     number = {3},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1978_3_a16/}
}