1. Elective induction of labor;Bishop;Obstet Gynecol,1955
2. Pelvic scoring for elective induction;Bishop;Obstet Gynecol,1964
3. Het inleiden van de baring: prostaglandines of oxytocine;Sankaranarayanan,1986
4. Prelabor evaluation of inducibility;Lange;Obstet Gynecol,1982
5. Induction of labour;Lange,1986