%0 Journal Article %A Bruce D. Martin %A Reza Sarhangi %T Symmetry, Chemistry, and Escher's Tiles %J Visual Mathematics %D 2001 %V 3 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2001_3_1_a3/ %G en %F VM_2001_3_1_a3