%0 Journal Article %A H. Katsuura %T Angles of Isosceles Tetrahedra %J Journal for geometry and graphics %D 2021 %P 243-251 %V 25 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2021_25_2_JGG_2021_25_2_a7/ %F JGG_2021_25_2_JGG_2021_25_2_a7