Benio, Marek. “On Demographic Changes, Retirement Age, Prolongation and Gradual Reduction of the Poles’ Economic Activity, and the Threat of Social Exclusion of the Elderly: An Interview With Professor Maciej Żukowski, the President of the Polish Social Insurance Association, and the Pro-Vice-Chancellor for Science and International Cooperation of the Poznań Economic University”. Journal of Public Governance, vol. 20, no. 2, Mar. 2013, pp. 77-82, https://publicgovernance.pl/zpub/article/view/230.