Clavareau, L. & Sabarros, P.S. & Escalle, L. & Bach, P. & Abascal, F.J. & Lopez, J. & Murua, H. & Alayon, P.J.P. & Ramos, M.L. & Ruiz, J. & Merigot, B. (2020)
Elasmobranch bycatch distributions and mortality: Insights from the European tropical tuna purse-seine fishery. Global Ecology and Conservation, 24, Article e01211
DOI: 10.1016/j.gecco.2020.e01211

Hernández-Pérez, M. & Gallego, R.M.R. & Alayón, P.J.P. & Hernández, A.B. (1998)
Squalene content in livers from deep-sea sharks caught in Canary Island waters. Marine and Freshwater Research, 48(7), 573–576
DOI: 10.1071/MF97004