%0 Journal Article %A A. V. Babin %T Expression of $A^{-1}$ in terms of iterates of an unbounded self-adjoint operator $A$ on the analytic vectors %J Funkcionalʹnyj analiz i ego priloženiâ %D 1977 %P 3-5 %V 11 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1977_11_4_a0/ %G ru %F FAA_1977_11_4_a0