SHARMA, P. W. Jordskælv, hvordan fungerer de?. Varv, [S. l.], v. 1973, n. 4, p. 112–121, 1973. DOI: 10.7146/varv.v1973i4.150723. Disponível em: https://tidsskrift.dk/varv/article/view/150723. Acesso em: 7 jan. 2025.