@article{Mulford1998,
author = {Mulford, M. and Orbell, J. and Shatto, C. and Stockard, J.},
title= {Physical attractiveness, opportunity, and success in everyday exchange},
year = {1998},
doi = {10.1086/231401},
volume = {103},
number = {6},
pages = {1565--1592},
}