%0 Journal Article
%A V. A. Il'in
%A E. I. Moiseev
%T On spectral decompositions corresponding to an arbitrary nonnegative selfadjoint elliptic operator of second order
%J Doklady Akademii Nauk
%D 1971
%P 770-772
%V 197
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_197_4_a7/
%G ru
%F DAN_1971_197_4_a7