O. Airaksinen, J. I. Brox, C. Cedraschi, J. Hildebrandt, J. Klaber-Moffett, F. Kovacs, A. F. Mannion, S. Reis, J. B. Staal, H. Ursin, G. Zanoli, ,
Chapter 4 European guidelines for the management of chronic nonspecific low back pain European Spine Journal. ,vol. 15, pp. s192- s300 ,(2006) ,
10.1007/S00586-006-1072-1