Inoue Jiro, Harada Toshinobu, Imai Toshiyuki, Kojima Shiori. Proposal of an Analysis Method of Characteristics of Space Curves. Bulletin of Japanese Society for the Science of Design. 2009. 55. 5. 5_65-5_74
Inoue Jiro, Harada Toshinobu, Imai Toshiyuki. Extraction of Lines of Curvature and Analysis of Curves in the Natural Objects and Craftworks. Bulletin of Japanese Society for the Science of Design. 2007. 54. 3. 39-46