Chávez Barreto EI. Funktionskreis and the stratificational model of semiotic structures: Jakob von Uexküll, Luis Prieto and Louis Hjelmslev. SSS [Internet]. 2019 Aug. 8 [cited 2024 Apr. 24];47(1/2):69-87. Available from: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2019.47.1-2.02