KULL, K. Biosemiotics and the problem of intrinsic value of nature. Sign Systems Studies, [S. l.], v. 29, n. 1, p. 354–365, 2001. DOI: 10.12697/SSS.2001.29.1.22. Disponível em: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2001.29.1.22. Acesso em: 25 apr. 2024.