@article{DAN_1981_259_5_a12,
     author = {A. S. Monin and O. G. Sorokhtin},
     title = {On the volumetric gravitation differentiation of the {Earth}},
     journal = {Doklady Akademii Nauk},
     pages = {1076--1079},
     publisher = {mathdoc},
     volume = {259},
     number = {5},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_5_a12/}
}