1. Orthodontics—Principles and practice;Graber,1966
2. Vertical changes during Begg treatment;Bijlstra;Trans. European Orthodont. Soc.,1969
3. Begg treatment of high-angle cases;Williams;Amer. J. Orthodont.,1970
4. Effect of intermaxillary traction on the occlusal plane in malocclusion treated by the Begg technique (abstract);Phillips;Amer. J. Orthodont.,1966