Dugger, K. M., Ainley, D. G., Lyver, P. O., Barton, K., & Ballard, G. (2010). Survival differences and the effect of environmental instability on breeding dispersal in an Adélie penguin meta-population. National Academy of Sciences.

Dugger, Katie M., David G. Ainley, Phil O'B Lyver, Kerry Barton, und Grant Ballard. Survival Differences and the Effect of Environmental Instability On Breeding Dispersal in an Adélie Penguin Meta-population. National Academy of Sciences, 2010.

Dugger, Katie M., et al. Survival Differences and the Effect of Environmental Instability On Breeding Dispersal in an Adélie Penguin Meta-population. National Academy of Sciences, 2010.