@article{SEMR_2008_5_a46,
     author = {T. V. Bugueva},
     title = {Determining of isotropic medium parameters in a~sphere},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {524--530},
     publisher = {mathdoc},
     volume = {5},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2008_5_a46/}
}