https://academic.oup.com/beheco/article/20/5/1133/212167/Trade-offs-between-markers-of-absolute-and (Publisher version)
Saxton, T. K., Little, A. C., Rowland, H. M., Gao, T., & Roberts, S. C. (2009). Trade-offs between markers of absolute and relative quality in human facial preferences. Behavioral Ecology, 20(5), 1133-1137. doi:10.1093/beheco/arp107.