Stöckli, S., Schulte-Mecklenbeck, M., Borer, S., & Samson, A. C. (2019). A practical guide for automated facial emotion classification. In M. Schulte-Mecklenbeck, A. Kühberger, & J. G. Johnson (Eds.), A handbook of process tracing methods (2nd ed., pp. 198-216). New York: Routledge.