1. The selected writings of Beryl E. Arbuckle, D.O., F.A.C.O.P;Arbuckle,1971
2. Gray's Anatomy,1995
3. Pratique de l'accouchement;Lansac,1988
4. Ligamentous contributions to pelvic stability;Vrahas;Orthopedics,1995
5. Anatomical variations in the female pelvis and their effect in labor with a suggested classification;Caldwell;Am J Obstet Gynecol,1933