@article{GDZPPN002106272, title = {The shape of a figure-eight under the curve shortening flow.}, journal = {Inventiones mathematicae}, volume = {96}, year = {1989}, pages = {177-180}, zbl = {0669.53003}, url = {http://dml.mathdoc.fr/item/GDZPPN002106272} }
Grayson, Matthew A. The shape of a figure-eight under the curve shortening flow.. Inventiones mathematicae, Tome 96 (1989) pp. 177-180. http://gdmltest.u-ga.fr/item/GDZPPN002106272/