@article{ZVMMF_1965_5_1_a9,
     author = {A. Ya. Belostotskii},
     title = {An estimate for the precision of approximate solutions of a system of linear algebraic equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {112--114},
     publisher = {mathdoc},
     volume = {5},
     number = {1},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1965_5_1_a9/}
}