@article{DAN_1980_250_5_a16,
     author = {L. M. Berkovich},
     title = {The {Gylden--Meshcherskii} problem and the laws of variation of mass},
     journal = {Doklady Akademii Nauk},
     pages = {1088--1091},
     publisher = {mathdoc},
     volume = {250},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_5_a16/}
}