@article{DAN_1966_169_6_a19,
     author = {I. G. Fikhtengol'ts},
     title = {Gravitation equations and coordinate conditions in conformal space},
     journal = {Doklady Akademii Nauk},
     pages = {1314--1317},
     publisher = {mathdoc},
     volume = {169},
     number = {6},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_169_6_a19/}
}