@article{ZVMMF_1966_6_5_a3,
     author = {V. V. Ivanov and V. Yu. Kudrins'kii},
     title = {Approximate solution of linear operator equations in {Hilbert} space by the method of least {squares.~I}},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {831--841},
     year = {1966},
     volume = {6},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1966_6_5_a3/}
}