1. Eisenstein S (1976) Measurements of the lumbar spinal canal in 2 racial groups. Clin Orthop 115: 42–46
2. Kortmann HR (1986) Die Morphometrie der Pedikel an der thorakolumbalen und lumbalen Wirbelsäule (in preparation)
3. Krag MH, Beynnon BD, Pope MH, Frymoyer JW, Haugh LD, Weaver DL (1986) An internal fixator for posterior application to short segments of the thoracic, lumbar, or lumbosacral spine. Clin Orthop 203: 75–98
4. Louis R (1982) Chirurgie du rachis. Springer-Verlag, Berlin Heidelberg New York
5. Louis R (1986) Fusion of the lumbar and sacral spine by internal fixation with screw plates. Clin Orthop 203: 18–33