TOGNI, A. Helmholtz, Du Bois-Reymond, and the Transcendent Difficulty of Explaining the Relation between Sensations and the Physical World. Studia Philosophica Estonica, [S. l.], v. 10, n. 1, p. 83–98, 2017. DOI: 10.12697/spe.2017.10.1.06. Disponível em: https://ojs.utlib.ee/index.php/spe/article/view/14485. Acesso em: 6 dec. 2025.