@article{DAN_1965_160_4_a2,
     author = {I. Ts. Gokhberg and I. A. Fel'dman},
     title = {Approximate solutions of some classes of linear equations},
     journal = {Doklady Akademii Nauk},
     pages = {750--753},
     publisher = {mathdoc},
     volume = {160},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_160_4_a2/}
}