Takashi Terashima Hiroshi Shimanuki Jien Kato Toyohide Watanabe Understanding Folding Process of Origami Drill Books Based on Graphic Matching. 261-264 2005 MVA http://b2.cvl.iis.u-tokyo.ac.jp/mva/proceedings/CommemorativeDVD/2005/papers/2005261.pdf conf/mva/2005 db/conf/mva/mva2005.html#TerashimaSKW05