| 1. | Rudolf Otto (1869-1937) | | | Resource page including biographical and extensive bibliographical information. Also features several online texts in both German and English. www.netrax.net |
| 2. | Friesian School: Rudolf Otto | | | An account of Otto's relation to Kantian-Friesian thought, and the encumbrance which that rationalistic tradition may have been for him. www.friesian.com |
| 4. | Rudolf Otto in Rem B. Edwards | | | Kelley L. Ross uses this modern writer as a case study in typical contemporary treatments of Otto's theory of numinosity. www.friesian.com |
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