@article{VSGU_2023_29_1_a0,
     author = {A. V. Kiptenko and I. M. Izbiakov},
     title = {On sparse approximations of solutions to linear systems with orthogonal matrices},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {7--14},
     year = {2023},
     volume = {29},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2023_29_1_a0/}
}