1. Pain in the back, neck and extremities;Adams,1977
2. The cervical zygapophyseal joints as source of neck pain;Bogduk;Spine,1988
3. Arthogene pseudoradikuläre Syndrome;Brügger;Acta Rheuma. Documenta Geigy. Acta rheumatologica,1962
4. Die Klinische Untersuchung der Schulter;Brunner,1990
5. Degenerative conditions of the spine;Clark,1991