Curto, José Dias, and Catarina Vital. “Socially Responsible Investment: A Comparison Between the Performance of Sustainable and Traditional Stock Indexes”. Journal of Reviews on Global Economics 3 (September 23, 2014): 349–363. Accessed May 3, 2024. https://www.lifescienceglobal.com/pms/index.php/jrge/article/view/2339.