%0 Journal Article
%A Y. Tsuji
%A H. Suzuki 
%T Geometric Feature of a Structure Composed of Concave and Convex Parabolic Mirrors
%J Journal for geometry and graphics
%D 2019
%P 235-244
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2019_23_2_JGG_2019_23_2_a9/
%F JGG_2019_23_2_JGG_2019_23_2_a9