1. Hyperextension injuries of the cervical spine;Alexander;Arch Neurol Psychiatry,1958
2. Cervical spinal canal in intraspinal expansive processes;Boijsen;Acta Radiol,1954
3. Cervical Spondylolysis and Other Disorders of the Cervical Spine, ed 1,1967
4. Biomechanics of the Central Nervous System;Breig,1961
5. Funktionelle Röntgendiagnostik der Halswirbelsaule;Buetti-Bauml,1954