1. Variations in Number and arrangement of renal vessels;Anson;J. Urol.,1938
2. Arey, L.B.: Developmental Anatomy. Philadelphia: W.B. Saunders Co.
3. Heminephrectomy in disease of double kidneys;Beer;Ann. Surg.,1938
4. Observations medicae rarious;Blasius;Abrahamum Wolfgang,1677
5. The clinical significance of congenital anomalies of the kidney;Bugbee;Surg., Gynec. & Obst.,1919