1. Extraoral force—facts and fallacies;Graber;Am J Orthod,1955
2. A cephalometric analysis of the stability and type of movement obtained in Class II, division I malocclusions treated with extra-oral forces;Bernardi,1956
3. Appliances at the crossroads;Graber;Am J Orthod,1956
4. An evaluation of cervical traction on the maxilla and the upper first pernanent molar;Klein;Angle Orthod,1957
5. Some observations on extraoral treatment;Newcomb;Angle Orthod,1958