Nihal Apaydin, Nerves and Nerve Injuries, 1: History, Embryology, Anatomy, Imaging, and Diagnostics, , 627–645 p. (ISBN978-0-12-410390-0, DOI10.1016/B978-0-12-410390-0.00049-4), « Chapter 47 - Variations of the Lumbar and Sacral Plexuses and Their Branches »