Couto, A. & Queiroz, N. & Relvas, P. & Baptista, M. & Furtado, M. & Castro, J. & Nunes, M. & Morikawa, H. & Rosa, R. (2017)
Occurrence of basking shark Cetorhinus maximus in southern Portuguese waters: a two-decade survey.
Marine Ecology Progress Series, 564, 77–86 DOI: 10.3354/meps12007