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- Helmbold, Andrew K. (1970): The Apocryphon of John: A Case Study in Literary Criticism.
- Habets, Myk (2008): Developing a retroactive Hermeneutic: Johannine Tehology and Doctrinal development, in: American Theological Inquiry 2/2008. S. 77-89.
- Joubert, J. (2007): Johannine metaphors/symbols linked to the paraclete-spirit and their theological implications, in: Acta Theologica 27/1. S. 83-103.
- Shim, Woo-Jin (2003): Kyrios im Johannesevangelium. Eine exegetische Untersuchung zum Kyrios-Titel im Johannesevangelium. Link [Dissertation]