A Computer Search for Planar Substitution Tilings with n-Fold Rotational Symmetry. - Franz Gähler; Eugene E. Kwan; Gregory R. Maloney (Discret. Comput. Geom., 2015)

On substitution tilings of the plane with n-fold rotational symmetry. - Gregory Ross Maloney (Discret. Math. Theor. Comput. Sci., 2015)