VON FOERSTER, H. Lethology a theory of learning and knowing vis à vis undeterminables, undecidables, unknowables. Revista Universidad EAFIT, [S. l.], v. 33, n. 107, p. 13–30, 2012. Disponível em: https://publicaciones.eafit.edu.co/index.php/revista-universidad-eafit/article/view/1121. Acesso em: 22 jul. 2024.