%0 Journal Article
%A G. I. Laptev
%T Operational calculus of linear unbounded operators and semigroups
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1970
%P 31-40
%V 4
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1970_4_4_a3/
%G ru
%F FAA_1970_4_4_a3