Elham Shabani, Babollah Hayati, Esmaeil Pishbahar, Mohammad Ali Ghorbani, and Mohammad Ghahremanzadeh. “The Potential Relationship Between Income Inequality and Environmental Quality in Iran: The Panel Quantile Regression Approach”. Regional Economic Development Research, vol. 4, no. 2, July 2023, pp. 83-100, doi:10.37256/redr.4220232864.