Chang, Han-liang. “Semiotician or Hermeneutician? Jakob Von Uexküll Revisited”. Sign Systems Studies 32, no. 1/2 (December 31, 2004): 115–138. Accessed April 18, 2024. https://ojs.utlib.ee/index.php/sss/article/view/SSS.2004.32.1-2.05.