%0 Journal Article %A Z. A. Steingrad %T On the statement of Cauchy problem with arbitrary selection of the reference system in Einstein's theory of gravity %J Doklady Akademii Nauk %D 1975 %P 290-292 %V 225 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_225_2_a12/ %G ru %F DAN_1975_225_2_a12