Gorman KB, Williams TD, Fraser WR (2014).
“Ecological Sexual Dimorphism and Environmental Variability within a Community of Antarctic Penguins (Genus Pygoscelis).”
PLoS ONE, 9(3), e90081.
tools:::Rd_expr_doi("10.1371/journal.pone.0090081").
https://github.com/allisonhorst/palmerpenguins