Lampret, Vito. “The Perimeter of a Flattened Ellipse Can Be Estimated Accurately Even from Maclaurin‘s Series”. CUBO, A Mathematical Journal 21, no. 2 (August 10, 2019): 51–64. Accessed May 19, 2024. https://cubo.ufro.cl/ojs/index.php/cubo/article/view/2158.