Smiling on the Inside: The Social Benefits of Suppressing Positive Emotions in Outperformance Situations
Personality and Social Psychology Bulletin (2016) - Comment
pubmed: 27029576  doi: 10.1177/0146167216637843  issn: 1552-7433  issn: 0146-1672 

Marina Schall, Sarah E. Martiny, Thomas Goetz, Nathan C. Hall