1. Vasectomy in prostatic obstruction;Guyon,1885
2. Birkett and Hilton: Atrophy of the prostate gland from vasectomy. Holmes System of Surgery, 1893.
3. Division of vasa in cases of prostatic hypertrophy;Harrison;Lancet, London,1896
4. Proust, R.: La Prostatectomie. Paris, 1904.
5. Albarran, J.: Medecine Operatoire des Voies Urinaires. Paris, 1909.