%0 Journal Article
%A S. S. Girgel
%T Solutions of the wave equation in parabolic rotary coordinates. II. 3D Tricomi--Kummer light beams and other beams with the continuous angular index
%J Problemy fiziki, matematiki i tehniki
%D 2020
%P 20-24
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PFMT_2020_4_a2/
%G ru
%F PFMT_2020_4_a2