%0 Journal Article %A I. S. Gramberg %A R. M. Demenitskaya %A È. M. Litvinov %A S. P. Mashchenkov %T Symmetric gravitational anomalies as an evidence of paleoreformation of the development of mid-oceanic ridges %J Doklady Akademii Nauk %D 1989 %P 830-835 %V 309 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1989_309_4_a15/ %G ru %F DAN_1989_309_4_a15