%0 Journal Article %A H. Katsuura %T Central and Twin Tetrahedra %J Journal for geometry and graphics %D 2023 %P 119-126 %V 27 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/JGG_2023_27_2_JGG_2023_27_2_a0/ %F JGG_2023_27_2_JGG_2023_27_2_a0