1. Osteochondrose-syndrom und arthropathia deformans als ursache der habituellen und stationären luxatio incompleta des 6: brustwirbels bei legehennen mit paralyse;DAMMRICH K.;Berlin. Münch. Tierärzt. Wochenschr.,1994
2. Do different forms of spondylolisthesis occur in broiler fowls?;DUFF S.R.I.;Avian Pathol.,1990
3. The welfare of chickens kept for meat production: Report of the Scienti®c Committee on Animal Health and Animal Welfare,2000
4. The distribuition of pneumatisation in the skeleton of the adult domestic fowl;HOGG D.A.;J. Anat.,1984
5. Occurrence of spondylolisthesis ("Kinky Back") in broiler chickens in south Australia;KELLY W.R.;Aust. Vet. J.,1971