@article{DAN_1977_232_3_a10,
     author = {P. I. Balk},
     title = {An approximational approach in three-dimensional problems on the quantitative interpretation of gravitational anomalies},
     journal = {Doklady Akademii Nauk},
     pages = {548--551},
     publisher = {mathdoc},
     volume = {232},
     number = {3},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_232_3_a10/}
}