BERROW, S.; HOLMES, B. Tour boats and dolphins: A note on quantifying the activities of whalewatching boats in the Shannon estuary, Ireland. J. Cetacean Res. Manage., [S. l.], v. 1, n. 2, p. 199–204, 1999. DOI: 10.47536/jcrm.v1i2.467. Disponível em: https://journal-iwc-live.netxtra.dev/index.php/jcrm/article/view/467. Acesso em: 28 sep. 2025.