形形色色的曲線　蔣声編著　上海教育出版社

2d Curves : http://www.2dcurves.com

Math World : http://mathworld.wolfram.com

Jen-Chung Chuan : http://poncelet.math.nthu.edu.tw/

Famous Curves Index : http://www-history.mcs.stand.ac.uk/history/Curves/Curves.html

http://poncelet.math.nthu.edu.tw/disk4/liu/www/gc/paper.html