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Amory, J. R., Barker, Z. E., Wright, J. L., Mason, Sam (Sam A.), Blowey, R. W. and Green, Laura E.. (2008) Associations between sole ulcer, white line disease and digital dermatitis and the milk yield of 1824 dairy cows on 30 dairy cow farms in England and Wales from February 2003 – November 2004. Preventive Veterinary Medicine, Vol.83 (No.3-4). pp. 381-391. ISSN 0167-5877

Barker, Z. E., Amory, J. R., Wright, J. L., Blowey, R. W. and Green, Laura E.. (2007) Management factors associated with impaired locomotion in dairy cows in England and Wales. Journal of Dairy Science, Vol.90 (No.7). pp. 3270-3277. ISSN 0022-0302

Amory, J. R., Kloosterman, P., Barker, Z. E., Wright, J. L., Blowey, R. W. and Green, Laura E.. (2006) Risk factors for reduced locomotion in dairy cattle on nineteen farms in the Netherlands. Journal of Dairy Science, Vol.89 (No.5). pp. 1509-1515. ISSN 0022-0302