@article{ZVMMF_2002_42_3_a6,
     author = {V. V. Pickalov and A. V. Likhachev},
     title = {A new method for deriving an unknown additive background in projection data in three-dimensional tomography},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {357--369},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2002_42_3_a6/}
}