@article{VNGU_2018_18_2_a1,
     author = {D. S. Anikonov and D. S. Konovalova},
     title = {Forward and inverse problems with discontinuous coefficient},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {13--29},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2018_18_2_a1/}
}