@article{DAN_1980_254_4_a17,
     author = {V. N. Strakhov},
     title = {On the synthesis of series expansion of external gravitational potential m spherical
},
     journal = {Doklady Akademii Nauk},
     pages = {839--841},
     publisher = {mathdoc},
     volume = {254},
     number = {4},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_254_4_a17/}
}