1. Der Hysteronograph;Frey;Zentbl. Gynäk.,1933
2. Tokometer, wehen Messinstrument der geburtshilflicken Praxis;Lorand;Gynaecologia,1947
3. Clinical Measurements of Uterine Forces in Pregnancy and Labor;Reynolds,1954
4. The guard-ring tocodynamometer;Smyth;J. Obstet. Gynaec. Br. Commonw.,1957
5. Recording the contraction of the human pregnant and non-pregnant uterus;Moir;Trans. Edinb. Obstet. Soc.,1934