Girard, Jeffrey M., Cohn, Jeffrey F., Yin, Lijun, and Morency, Louis-Philippe. Reconsidering the Duchenne Smile: Formalizing and Testing Hypotheses About Eye Constriction and Positive Emotion. Retrieved from https://par.nsf.gov/biblio/10290468. Affective Science 2.1 Web. doi:10.1007/s42761-020-00030-w.

Girard, Jeffrey M., Cohn, Jeffrey F., Yin, Lijun, & Morency, Louis-Philippe. Reconsidering the Duchenne Smile: Formalizing and Testing Hypotheses About Eye Constriction and Positive Emotion. Affective Science, 2 (1). Retrieved from https://par.nsf.gov/biblio/10290468. https://doi.org/10.1007/s42761-020-00030-w

Girard, Jeffrey M., Cohn, Jeffrey F., Yin, Lijun, and Morency, Louis-Philippe. "Reconsidering the Duchenne Smile: Formalizing and Testing Hypotheses About Eye Constriction and Positive Emotion". Affective Science 2 (1). Country unknown/Code not available. https://doi.org/10.1007/s42761-020-00030-w. https://par.nsf.gov/biblio/10290468.

@article{osti_10290468,
place = {Country unknown/Code not available}, title = {Reconsidering the Duchenne Smile: Formalizing and Testing Hypotheses About Eye Constriction and Positive Emotion}, url = {https://par.nsf.gov/biblio/10290468}, DOI = {10.1007/s42761-020-00030-w}, abstractNote = {}, journal = {Affective Science}, volume = {2}, number = {1}, author = {Girard, Jeffrey M. and Cohn, Jeffrey F. and Yin, Lijun and Morency, Louis-Philippe}, }