@article{SJIM_2013_16_4_a10,
     author = {I. E. Svetov},
     title = {Properties of the ray transforms of two-dimensional $2$-tensor fields given in the unit disk},
     journal = {Sibirskij \v{z}urnal industrialʹnoj matematiki},
     pages = {121--130},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SJIM_2013_16_4_a10/}
}