%0 Journal Article %A L. A. Khalfin %T On the theory of the decay of a quasi-stationary state %J Doklady Akademii Nauk %D 1957 %P 277-280 %V 115 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_115_2_a21/ %G ru %F DAN_1957_115_2_a21