Tuset, V. M., S. Piretti, A. Lombarte, and J. A. González. “Using Sagittal Otoliths and Eye Diameter for Ecological Characterization of Deep-Sea Fish: Aphanopus Carbo and A. Intermedius from NE Atlantic Waters”. Scientia Marina, vol. 74, no. 4, Dec. 2010, pp. 807-14, doi:10.3989/scimar.2010.74n4807.