- ↑ Talbert, Charles H. (January 1, 1975). "The Concept of Immortals in Mediterranean Antiquity". Journal of Biblical Literature. 94 (3): 419-436.
- ↑ Brockliss, William. 2017. "The Hesiodic Shield of Heracles: The Text as Nightmarish Vision." Illinois Classical Studies 42.1: 1-19.