@article{VMP_2003_4_1_a25,
     author = {V. V. Pickalov and A. V. Nepomnyashchiy},
     title = {An iterative algorithm for two-dimensional tomographic reconstruction
},
     journal = {Numerical methods and programming},
     pages = {244--253},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2003_4_1_a25/}
}