TYBJERG, J. Erik Farmann og Peter Kramhøft: Radio. MedieKultur: Journal of media and communication research, [S. l.], v. 5, n. 11, p. 1 page, 1989. DOI: 10.7146/mediekultur.v5i11.854. Disponível em: https://www.mediekultur.dk/article/view/854. Acesso em: 27 aug. 2025.