Brandt, Ulrich, Dagmar Zanker, ir Dina Frommert. „Financial Crisis, Confidence in Financial Markets and Participation in Private Pension Plans in Germany“. Socialinė teorija, empirija, politika ir praktika 29 (liepos 3, 2024): 8–22. žiūrėta vasario 2, 2026. https://www.journals.vu.lt/STEPP/article/view/33234.