Polo, P. ., Fernandez, A. ., Muñoz-Reyes, J. ., Dufey, M. ., & Buunk, A. . (1969). Intrasexual Competition and Height in Adolescents and Adults. Evolutionary Psychology : An International Journal of Evolutionary Approaches to Psychology and Behavior, 16(1), 1474704917749172. https://doi.org/10.1177/1474704917749172 (Original work published 1969)