Neiva, J. & Coelho, R. & Erzini, K. (2006)
Feeding habits of the velvet belly lanternshark Etmopterus spinax (Chondrichtyes: Etmopteridae) off the Algarve, southern Portugal.
Journal of the Marine Biological Association of the United Kingdom, 86(4), 835–841 DOI: 10.1017/S0025315406013762