Rotengruber, Przemysław. 2019. „The Marginal Morality (die Grenzen Der Moral) As an Ethical Challenge and As the Knowledge on How to Gain Competitive Advantage”. Annales. Etyka W Życiu Gospodarczym 20 (5):21-31. https://doi.org/10.18778/1899-2226.20.5.02.