Yanow, D., and P. Schwartz-Shea. “Framing "Deception" and "Covertness" In Research: Do Milgram, Humphreys, and Zimbardo Justify Regulating Social Science Research Ethics?”. Forum Qualitative Sozialforschung / Forum: Qualitative Social Research, vol. 19, no. 3, Sept. 2018, doi:10.17169/fqs-19.3.3102.