1. New trends in fetal heart rate monitoring. The importance of variability;Gabbe,1976
2. Diagnosis and management of hypoxic fetal heart rate patterns;Gimovsky,1982
3. An Atlas of Fetal Heart Rate Patterns;Hon,1968
4. Clinical fetal monitoring. VII. The evaluation and significance of intrapartum baseline FHR variability;Paul;Am J Obstet Gynecol,1975
5. Autonomic control of fetal heart rate;Renou;Am J Obstet Gynecol,1969