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Gibson, TJ; Johnson, CB; Murrell, JC; Hulls, CM; Mitchinson, SL; Stafford, KJ; Johnstone, AC; Mellor, DJ «Electroencephalographic responses of halothane-anaesthetised calves to slaughter by ventral-neck incision without prior stunning». New Zealand Veterinary Journal, 57, 2, 4-2009, pàg. 77–83. DOI: 10.1080/00480169.2009.36882.
Gibson, TJ; Johnson, CB; Murrell, JC; Chambers, JP; Stafford, KJ; Mellor, DJ «Components of electroencephalographic responses to slaughter in halothane-anaesthetised calves: Effects of cutting neck tissues compared with major blood vessels». New Zealand Veterinary Journal, 57, 2, 4-2009, pàg. 84–89. DOI: 10.1080/00480169.2009.36883.