Hoppe, Grzegorz. “Capital in the 21st Century: Are the Thomas Piketty’s Ideas a Way to Welfare and Prosperity or Enslavement?”. Journal of Corporate Responsibility and Leadership 4, no. 2 (March 6, 2018): 43–53. Accessed December 9, 2022. https://apcz.umk.pl/JCRL/article/view/JCRL.2017.009.