File talk:KnotSignedEdge-.png
Jump to navigation
Jump to search
Dear Shizhao, thanks for your report, but if you read carefully the website you cited, you'll see that I am the author of that image and I let my friend Steven Abbott use it on his own website.
look for my name at the bottom of each of these pages. Christian.Mercat (talk) 20:45, 25 April 2009 (UTC)
