Reference

Jerez S, Motas M, Benzal J, Diaz J & Barbosa A (2013). Monitoring trace elements in Antarctic penguin chicks from South Shetland Islands, Antarctica. Marine Pollution Bulletin 69(1–2):67–75.
Pacyna AD, Jakubas D, Ausems ANMA, Frankowski M, Polkowska Ż & Wojczulanis-Jakubas K (2019). Storm petrels as indicators of pelagic seabird exposure to chemical elements in the Antarctic marine ecosystem. Science of the Total Environment 692:382–392.