EEG changes in 4-week-old lambs in response to castration, tail docking and mulesing.
Jongman EC, Morris JP, Barnett JL, Hemsworth PH, Aust Vet J, 2000 May - link

Tail docking and beliefs about the practice in the Victorian dairy industry.
Barnett JL, Coleman GJ, Hemsworth PH, Newman EA, Fewings-Hall S, Ziini C, Aust Vet J, 1999 Nov - link