J. DiNardo, 2008. "natural experiments and quasi-natural experiments," The New Palgrave Dictionary of Economics, 2nd Edition. Abstract.Arxivləşdirilib 2017-12-03 at the Wayback Machine
See, e.g., Grechenig, K., Nicklisch, A., & Thöni, C. (2010). Punishment despite reasonable doubt—a public goods experiment with sanctions under uncertainty. Journal of Empirical Legal Studies, 7(4), 847–867 (link).
J. DiNardo, 2008. "natural experiments and quasi-natural experiments," The New Palgrave Dictionary of Economics, 2nd Edition. Abstract.Arxivləşdirilib 2017-12-03 at the Wayback Machine