TØNNESSEN, M. Abstraction, cruelty and other aspects of animal play (exemplified by the playfulness of Muki and Maluca). Sign Systems Studies, [S. l.], v. 37, n. 3/4, p. 558–579, 2009. DOI: 10.12697/SSS.2009.37.3-4.10. Disponível em: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2009.37.3-4.10. Acesso em: 29 mar. 2024.