@article{IM_1989__96_1_143675,
     author = {Matthew A. Grayson},
     title = {The shape of a figure-eight under the curve shortening flow.},
     journal = {Inventiones mathematicae},
     pages = {177--180},
     publisher = {mathdoc},
     volume = {96},
     number = {1},
     year = {1989},
     zbl = {0669.53003},
     url = {http://geodesic.mathdoc.fr/item/IM_1989__96_1_143675/}
}