Randomised, controlled field trial of two new techniques for the castration and tail docking of lambs less than two days of age.
Kent JE, Thrusfield MV, Molony V, Hosie BD, Sheppard BW, Vet Rec, 2004 Feb 14 - link

Tail docking in dogs.
Holt PE, Thrusfield MV, Aust Vet J, 1997 Jun - link

Association in bitches between breed, size, neutering and docking, and acquired urinary incontinence due to incompetence of the urethral sphincter mechanism.
Holt PE, Thrusfield MV, Vet Rec, 1993 Aug 21 - link

Association between tail injuries and docking in dogs.
Darke PG, Thrusfield MV, Aitken CG, Vet Rec, 1985 Apr 13 - link