1. Remarks on strictures of the urethra of extreme calibre, with cases, and a description of new instruments for their treatment;Otis;New York Med. J.,1872
2. Experimental and clinical studies of urethral regeneration;Weaver;Surg., Gynec. & Obst.,1962
3. Johanson, B.: Reconstruction of male urethra in strictures. Acta Chir. Scand., suppl. 176, p. 3, 1953.
4. Johanson urethroplasty for repair of urethral strictures;Jaffar;J. Urol.,1956
5. Late results of urethroplasty for stricture;Gerlaugh;J. Urol.,1959