Olivares, F., Tapia, R., Gálvez, C., Meza, F., Barriga, G. P., Borras-Chavez, R., Mena-Vasquez, J., Medina, R. A., Neira, V., (2019). Transboundary and Emerging Diseases 66(6), 2227-2232. Wiley, Berlin, Germany. English language
Munro, G., (2006). Outbreak of Avian Pox Virus in Gentoo Penguins in the Falklands, February 2006 Falklands Conservation, Sandy, UK. English language
Olsen, B., Bergström, S., McCafferty, D. J., Sellin, M., Wiström, J., (1996). Lancet (British edition) 348(9037), 1319-1320. English language