Contents - Analysis on Fractals,Design of an Optical Device Based on Kirigami Approach,Design of an Optical Device Based on Kirigami Approach,Lucky Star Fractal - Origami by Michał Kosmulski,Kirigami - Museum of Mathematics of Catalonia 洋書 LEOPARD GECKOS: The Next Generations こうはら舞昆 詰め合わせ