1. Basion horizontal;Coben,1986
2. Chronologic versus skeletal age, an evaluation of craniofacial growth;Fishman;Angle Orthod,1979
3. Radiographic evaluation of skeletal maturation: a clinically oriented study based on hand-wrist films;Fishman;Angle Orthod,1982
4. Maturational patterns and prediction during adolescence;Fishman;Angle Orthod,1987
5. The concept of maturity from a morphological viewpoint;Krogman;Child Develop,1950