@article{SJIM_2014_17_4_a4,
     author = {E. Yu. Derevtsov and S. V. Maltseva and I. E. Svetov},
     title = {Approximate recovery of a~function given in a~domain with low refraction from the ray integrals of the function},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {48--59},
     publisher = {mathdoc},
     volume = {17},
     number = {4},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2014_17_4_a4/}
}