@article{GDZPPN002100533, title = {Curve shortening makes convex curves circular.}, journal = {Inventiones mathematicae}, volume = {75}, year = {1984}, pages = {357-364}, zbl = {0542.53004}, url = {http://dml.mathdoc.fr/item/GDZPPN002100533} }
Gage, M.E. Curve shortening makes convex curves circular.. Inventiones mathematicae, Tome 75 (1984) pp. 357-364. http://gdmltest.u-ga.fr/item/GDZPPN002100533/