%0 Journal Article
%A G. G. Slyusarev
%T Optical systems with phase layers
%J Doklady Akademii Nauk
%D 1957
%P 780-783
%V 113
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1957_113_4_a15/
%G ru
%F DAN_1957_113_4_a15