Revelles, M., L. Cardona, A. Aguilar, A. Borrell, G. Fernández, and M. San Félix. “Stable C and N Isotope Concentration in Several Tissues of the Loggerhead Sea Turtle Caretta Caretta from the Western Mediterranean and Dietary Implications”. Scientia Marina, vol. 71, no. 1, Mar. 2007, pp. 87-93, doi:10.3989/scimar.2007.71n187.