Andres, Jan, Karel Pastor, and Snyrychov´aPavla. “Simple Fixed Point Theorems on Linear Continua”. CUBO, A Mathematical Journal 10, no. 4 (December 1, 2008): 27–43. Accessed May 21, 2022. https://revistas.ufro.cl/ojs/index.php/cubo/article/view/1486.