Reference

Mark-Oliver Rödel, Laura Sandberger, Johannes Penner, Youssouph Mané, Annika Hillers (2010): The taxonomic status of Hyperolius spatzi Ahl, 1931 and Hyperolius nitidulus Peters, 1875 (Amphibia: Anura: Hyperoliidae) – Bonn zoological Bulletin - früher Bonner Zoologische Beiträge. – 57: 177 - 188.