%0 Journal Article %A V. V. Shuleikin %T Certain features of secular variations in magnetic field over the ocean %J Doklady Akademii Nauk %D 1961 %P 848-851 %V 137 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_137_4_a23/ %G ru %F DAN_1961_137_4_a23