VLADIMIROVA, E. Sign activity of mammals as means of ecological adaptation. Sign Systems Studies, [S. l.], v. 37, n. 3/4, p. 614–638, 2009. DOI: 10.12697/SSS.2009.37.3-4.12. Disponível em: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2009.37.3-4.12. Acesso em: 26 dec. 2024.