FOLVING, Sten. H.G. Gierloff-Emden: Orbital Remote Sensing of Coastal and Offshore Environments. Geografisk Tidsskrift, [S. l.], v. 77, 1978. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/45453. Acesso em: 21 jan. 2026.