WIKMAN, K. IV. A hidden philosophy. Scripta Instituti Donneriani Aboensis, [S. l.], v. 4, p. 98–118, 1970. DOI: 10.30674/scripta.67048. Disponível em: https://journal.fi/scripta/article/view/67048. Acesso em: 3 may. 2024.