1. Funktions-Kieferorthopädie;Andresen,1953
2. The principles of the Andresen method of orthodontic treatment; A discussion based on cephalometric x-ray analysis of treated cases;Björk;Am J Orthod,1951
3. Cephalometric changes in seven “post-normal” cases treated by the Andresen method;Softley;Trans Br Soc Orthod,1952
4. Long-term effects of activator (Andresen appliance) treatment;Pancherz;Odontol Revy,1976
5. The effect of activator treatment on Class II malocclusions;Wieslander;Am J Orthod,1979