Branco, V. & Vale, C. & Canario, J. & Santos, M.N.D. (2007)
Mercury and selenium in blue shark (Prionace glauca, L. 1758) and swordfish (Xiphias gladius, L. 1758) from two areas of the Atlantic Ocean.
Environmental Pollution, 150(3), 373–380 DOI: 10.1016/j.envpol.2007.01.040