Günter, J. and Schmidt, S. (2020) “Voluntary Non-Financial Disclosure and Performance of Financial Firms Listed on Frankfurt Stock Exchange, Germany”, Journal of Finance and Accounting, 4(6), pp. 52–64. Available at: https://stratfordjournalpublishers.org/journals/index.php/journal-of-accounting/article/view/747 (Accessed: 22 August 2025).