1. Anatomie und atiologie der genitalprolapse beim weibe;Halban,1907
2. Study of the supportive structures of the uterus by levator myography;Berglas;Surg Gynecol Obstet,1953
3. Vaginal surgery;Nichols,1996
4. The SCIPP line—an aid in interpreting the voiding lateral cystourethrogram;Noll;Obstet Gynecol,1969
5. Human parturition: normal and abnormal labor;Miller,1958