Rump, A. ., and M. Buntrock. “Major Donations Fundraising in German Hospitals – Donation Potential of High-Net-Worth Individuals for Top-Quality Medicine and Research”. SCIENTIA MORALITAS - International Journal of Multidisciplinary Research , vol. 7, no. 1, July 2022, pp. 46-61, https://www.scientiamoralitas.com/index.php/sm/article/view/115.