Mueller, Christoph Emanuel, and Hansjoerg Gaus. “Treatment Effect Estimation Using Self-Estimated Counterfactuals Under Varying Conditions: A Meta-Analytic Exploration”. Journal of MultiDisciplinary Evaluation 14, no. 30 (April 13, 2018): 16–36. Accessed May 4, 2026. https://jmde.journals.publicknowledgeproject.org/index.php/jmde_1/article/view/484.