DellaGrazia M. E., RigattiP., CampoB.: Trattamento chirurgico delle stenosi dell'uretra maschile. Relaz. 47° Congr. Soc. It. Urol., p. 346–356, Roma 1974.
2.
MauermayerW.: Transurethral surgery, p. 389–391. Springer Verlag, Berlin-Heidelberg-New York1983.
3.
WeaverR. G., SchultM. D.: Experimental and clinical studies of urethral regeneration. Surg., Gynec. & Obst., 115; 729 (1962).