S. Ancora, V. Volpi, S. Olmastroni, S. Focardi, and C. Leonzio, Assumption and elimination of trace elements in Ad??lie penguins from Antarctica: a preliminary study, Marine Environmental Research, vol.54, issue.3-5, pp.341-344, 2002.
DOI : 10.1016/S0141-1136(02)00198-8

R. Bailey, The pelagic distribution of seabirds in the Western Indian Ocean, Ibis, vol.110, pp.492-493, 1968.

N. Barré, A. Barau, C. Jouanin, R. Barrett, and Y. Krasnov, Recent responses to changes in stocks of prey species by seabirds breeding in the southern Barents Sea, Les Editions du Pacifique, pp.713-722, 1996.
DOI : 10.1006/jmsc.1996.0090