Robert Holzmann, Mercedes Ayuso and Jorge Miguel Bravo (2017) “On the Heterogeneity in Longevity among Socioeconomic Groups: Scope, Trends, and Implications for Earnings-Related Pension Schemes”, Global Journal of Human-Social Science, 17(E1), pp. 31–57. Available at: https://socialscienceresearch.org/index.php/GJHSS/article/view/1961 (Accessed: 5 May 2024).