1. Merrot T, Weber D, Steyeart H, et al. Duplications sagittales de l'urètre chez l'enfant. A propos de 7 observations. Progrès en Urologie. 2002;12(1):77–83.
2. A case report;Bouhafs;Annales d Urologie,2002
3. Williams DI, Kenawi MM. Urethral duplication in the male. Eur Urol. 1985;1(5):209–215.
4. Sánchez MM, Vellibre RM, Castelo JL, et al. A new case of male Y–type urethral duplication and review of literature. J Pediatr Surg. 2006;41(1):e69–e71.
5. Duplication of the urethra;Effmann;Radiology,1976