CHRISTENSEN, Jan Top; SIDENIUS, Niels Chr. Introduktion. Politica, [S. l.], v. 14, n. 2, p. 1, 1982. DOI: 10.7146/politica.v14i2.67453. Disponível em: https://tidsskrift.dk/politica/article/view/67453. Acesso em: 11 jan. 2026.