1. A note on the occurrences of electric shocks and their possible effects on development of mastitis;Churchwood;Aust. Vet. J.,1948
2. Production of cows may be affected by small electrical shocks from milking plants;Phillips;N. Z. J. Agric.,1962
3. Phillips, D.S.M. (1962). Small voltages on milking plants, Proceedings of the Ruakura Farmers Conference Week.
4. Craine, L.B., Betts, A.L., and Greenfield, E.W. (1969). Electrical Ground Currents—Clark County, Washington State University. Wash. State Univ. Div. Ind. Res., Res. Rep. No. 69/16-5.
5. Feistman, F.J., and White, R.R. (1975). Tingle Voltages in Milking Parlors, British Columbia Dept. Agrie. Engineer. Notes 324.5-1.