%0 Journal Article %A A. A. Nikonov %T Determination of magnetudes and recurrence of strong earthquakes of the past %J Doklady Akademii Nauk %D 1980 %P 336-339 %V 250 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_250_2_a18/ %G ru %F DAN_1980_250_2_a18