%0 Journal Article %A V. P. Rudakov %T On long-period subsoil radon variations in tectonic structures of seismic regions %J Doklady Akademii Nauk %D 1990 %P 1352-1356 %V 312 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_312_6_a16/ %G ru %F DAN_1990_312_6_a16