Chávez Barreto, E. Israel. “Funktionskreis and the Stratificational Model of Semiotic Structures: Jakob Von Uexküll, Luis Prieto and Louis Hjelmslev”. Sign Systems Studies 47, no. 1/2 (August 8, 2019): 69–87. Accessed April 25, 2024. https://ojs.utlib.ee/index.php/sss/article/view/SSS.2019.47.1-2.02.