VEHKAVAARA, T. Natural self-interest, interactive representation, and the emergence of objects and Umwelt: An outline of basic semiotic concepts for biosemiotics. Sign Systems Studies, [S. l.], v. 31, n. 2, p. 547–587, 2003. DOI: 10.12697/SSS.2003.31.2.14. Disponível em: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2003.31.2.14. Acesso em: 27 apr. 2024.