@article{DAN_1979_245_5_a0,
     author = {P. N. Vabishchevich},
     title = {On the uniqueness of some external inverse problems for a metaharmonic potential},
     journal = {Doklady Akademii Nauk},
     pages = {1033--1036},
     publisher = {mathdoc},
     volume = {245},
     number = {5},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_5_a0/}
}