Flickr: Richard Sweeney: Forms in paperBeautiful paper sculpture.#paper#sculpture#art#origami#photography·flickr.com·Sep 20, 2007Flickr: Richard Sweeney: Forms in paper
Origami Geometric Constructions: Five Intersecting Tetrahedra#origami·merrimack.edu·Sep 5, 2005Origami Geometric Constructions: Five Intersecting Tetrahedra