1. An evaluation of 55 cobalt substituted nitinol wire for orthodontics;Andreasen;J. Am. Dent. Assoc.,1971
2. Beta titanium: A new orthodontic alloy;Burstone;Am. J. Orthod.,1980
3. Dental gold structures—Analysis and practicalities;Brumfield,1949
4. Edgewise orthodontics;Thurow,1972
5. Edgewise orthodontics;Thurow,1972