MEMO
http://gigazine.net/index.php?/news/comments/20060714_shoelace/さん経由にて
http://www.fieggen.com/shoelace/ianknot.htm Ian's Shoelace Site - "Ian Knot" = Ian's Fast Shoelace Knot
http://gigazine.net/index.php?/news/comments/20060714_shoelace/さん経由にて
http://www.fieggen.com/shoelace/ianknot.htm Ian's Shoelace Site - "Ian Knot" = Ian's Fast Shoelace Knot