G. Poelmann-Weesjes

The effect of (induced) maternal emotions on fetal behaviour: A controlled study

H. Prechtl, D. J. Bekedam, G. Visser, 1989, Early human development.

Abnormal velocity waveforms of the umbilical artery in growth retarded fetuses: relationship to antepartum late heart rate decelerations and outcome.

G. Visser, A. V. D. Van Der Zee, D. J. Bekedam, 1990, Early human development.

Heart rate variation and movement incidence in growth-retarded fetuses: the significance of antenatal late heart rate decelerations.

G. Visser, E. Mulder, D. J. Bekedam, 1987, American journal of obstetrics and gynecology.