1. Force in orthodontics and its relation to tooth movement;Storey;Aust Dent J,1952
2. A reassessment of force magnitude in orthodontics;Quinn;Am J Orthod,1985
3. A possibility for physiologic tooth movement;Oppenheim;Am J Orthod,1944
4. Experimental findings on tooth movements under two conditions of applied force;Andreasen;Angle Orthod,1967
5. Optimal force, differential force, and anchorage;Hixon;Am J Orthod,1969