1. The face in profile;Björk;Sven. Tandläk. Tidskr.,1947
2. The face of the normal child;Broadbent;Angle Orthod.,1937
3. The investigation of facial skeletal variants; a serial cephalometric roentgenographic analysis of craniofacial form and growth;Coben;Am. J. Orthod.,1955
4. A new line of reference for the study of lateral and facial teleradiographs;De Coster;Am. J. Orthod.,1953
5. Variations in facial relationship; their significance in treatment;Downs;Am. J. Orthod.,1948