1. Roentgen diagnosis of the craniovertebral region;Wackenheim,1974
2. Ossification of the tranverse ligament: two observations;Wackenheim;J Radiol Electrol Med Nucl,1978
3. Ossification of transverse ligament of the atlas: a report on three cases;Dietmann;J Radiol Electrol Med Nucl,1979
4. Marked canal stenosis at the level of the atlas;Sawada;Neuroradiology,1989
5. Ossification of the transverse atlantoid ligament in rheumatoid arthritis;Geiter;Eur Spine J,1993