1. The emotions;Frijda,1987
2. The social psychology of facial appearance;Bull,1988
3. The psychology of appearance and psychological impact of surgical alteration of the face;Flanary,1992
4. What do women want?;Cunningham;J Pers Soc Psychol,1990
5. Reading a smiling face: messages conveyed by various forms of smiling;Otta;Percept Mot Skills,1996