@article{DE_2006_42_8_a10,
     author = {V. V. Solov'ev},
     title = {Inverse problems for elliptic equations on the plane: {I}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1106--1114},
     year = {2006},
     volume = {42},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2006_42_8_a10/}
}