@article{DAN_1975_220_2_a16,
     author = {P. I. Balk},
     title = {On the solution to tree-dimensional inverse problem of gravimetry based on harmonic moments of disturbing masses},
     journal = {Doklady Akademii Nauk},
     pages = {331--334},
     year = {1975},
     volume = {220},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_220_2_a16/}
}