%0 Journal Article %A Rinus Roelofs %T Three-Dimensional and Dynamic Constructions Based on Leonardo Grids %J Visual Mathematics %D 2006 %V 8 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2006_8_1_a6/ %G en %F VM_2006_8_1_a6