CRAWFORD, R.; UNDERHILL, L.; COETZEE, J.; FAIRWEATHER, T.; SHANNON, L.; WOLFAARDT, A. Influences of the abundance and distribution of prey on African penguins <i>Spheniscus demersus</i> off western South Africa. African Journal of Marine Science, [S. l.], v. 30, n. 1, p. 167–175, 2008. DOI: 10.2989/ajms.2008.30.1.17.467. Disponível em: https://www.ajol.info/index.php/ajms/article/view/33524. Acesso em: 8 nov. 2026.