Dehnhard, N.; Pinxten, R.; Demongin, L.; Van Camp, J.; Eens, M.; Poisbleau, M. (2015). Relationships between female quality, egg mass and eggshell blue-green colouration in southern rockhopper penguins: a test of the sexual signalling hypothesis. Polar Biol. 38(11): 1805-1811. https://dx.doi.org/10.1007/s00300-015-1742-8, meer
Poisbleau, M.; Müller, W.; Carslake, D.; Demongin, L.; Groothuis, T.G.G.; Van Camp, J.; Eens, M. (2012). Penguin chicks benefit from elevated yolk androgen levels under sibling competition. PLoS One 7(7): 1-8. dx.doi.org/10.1371/journal.pone.0042174, meer
