Cit:Johnston et al. 2001a
| Typ | Artikel |
| Autor / Verfasser | Johnston, Victor S. & Hagel, Rebecca & Franklin, Melissa & Fink, Bernhard & Grammer, Karl |
| Jahr | 2001 |
| Titel | Male Facial Attractiveness. Evidence for Hormone-mediated Adaptive Design |
| Journal / Magazin | Evolution and Human Behavior |
| Band | 22 |
| Seiten | 251-267 |