Tittel	Individual quality and reproductive effort mirrored in white wing plumage in both sexes of south polar skuas
Undertittel
Forfattere	Hanssen, S.A., Bustnes, Jan O., Tveraa, T., Hasselquist, D., Varpe, Ø. & Henden, J.-A.
År	2009
Kilde	Behav. Ecol. 20: 961-966.
ISBN, ISSN	1045-2249