| 101 | Ralf Elsas, Jan Pieter Krahnen | Universal Banks and Relationships with Firms | Law and Economics of Financial Organizations | 2003 | |
| 34 | Ralf Elsas, Jan Pieter Krahnen | Collateral, Default Risk, and Relationship Lending: An Empirical Study on Financial Contracting | Credit Management & Credit Markets | 1999 | |
| 17 | Ralf Elsas, Sabine Henke, Achim Machauer, Roland Rott, Gerald Schenk | Empirical Analysis of Credit Relationships in Small Firms Financing: Sampling Design and Descriptive Statistics | Credit Management & Credit Markets | 1998 | |
| 8 | Ralf Elsas, Jan Pieter Krahnen | Is Relationship Lending Special? Evidence from Credit-File Data in Germany | Credit Management & Credit Markets | 1998 | |
| 81 | Ralf Elsas, Jan Pieter Krahnen | Collateral, Relationship Lending and Financial Distress: An Empirical Study on Financial Contracting | Law and Economics of Financial Organizations | 2002 | |