@article{DAN_1992_327_1_a13,
     author = {U. Shefer and T. V. Balk},
     title = {Mounting method of solution of combined inverse problem of gravi- and
},
     journal = {Doklady Akademii Nauk},
     pages = {79--83},
     publisher = {mathdoc},
     volume = {327},
     number = {1},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_327_1_a13/}
}