@article{02012604, title = {An equality for the curvature function of a simple and closed curve on the plane.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2003}, year = {2003}, pages = {3115-3122}, doi = {10.1155/S0161171203210371}, zbl = {1130.53300}, language = {en}, url = {http://dml.mathdoc.fr/item/02012604} }
Ou, Biao. An equality for the curvature function of a simple and closed curve on the plane.. International Journal of Mathematics and Mathematical Sciences, Tome 2003 (2003) pp. 3115-3122. doi : 10.1155/S0161171203210371. http://gdmltest.u-ga.fr/item/02012604/