Reference
Philipp Wagner, Dennis Rödder, Thomas M. Wilms (2012): New data on the morphology and natural history of Tetradactylus ellenbergeri (Angel, 1922) (Sauria: Gerrhosauridae) and Trachylepis ivensii (Bocage, 1879) (Sauria: Scincidae) in northeastern Zambia – Bonn zoological Bulletin - früher Bonner Zoologische Beiträge. – 61: 35 - 40.