%0 Journal Article
%A A. G. Sigalov
%T The main mathematical problem in the theory of atomic spectra
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1967
%P 1-18
%V 22
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_1967_22_2_a0/
%G en
%F RM_1967_22_2_a0