Khimshiashvili, Giorgi, Gaiane Panina, and Dirk Siersma. “Area-Perimeter Duality in Polygon Spaces”. MATHEMATICA SCANDINAVICA 127, no. 2 (August 31, 2021): 252–263. Accessed September 19, 2021. https://www.mscand.dk/article/view/126041.