Lang, Robert J. (http://www.langorigami.com (1) Goldwyn, Adam J. (north Dakota State University, Kokkini, Dimitra (royal Holloway (1) Kraft, Charles H., Macnutt, Francis, Macnutt, Judith (1) Clabby, John F. (1) Greif, Geoffrey L. (university Of Maryland, Deal, Kathleen Holtz (university Of Maryland (1)