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2003
Achieving 4% productivity: Implications from a longitudinal study of farmer learning in dairy farming, DI Gray, WJ Parker, and EA Kemp , Proceedings of the New Zealand Society of Animal Production, Volume 63, Queenstown, p.116-119, (2003) , (Full PDF)
1994
Farm management implications of a seasonal price differential for factory supply milk production, DI Gray, PA Yuretich, and GA Lynch , Proceedings of the New Zealand Society of Animal Production, Volume 54, p.383-388, (1994) , (Full PDF)
Farm management research in New Zealand and its contribution to animal production, WJ Parker, DI Gray, JC Lockhart, and RJ Townsley , Proceedings of the New Zealand Society of Animal Production, Volume 54, p.357-362, (1994) , (Full PDF)
1991
A modelling study of once-bred heifer beef production, PCB Keeling, ST Morris, DI Gray, and WJ Parker , Proceedings of the New Zealand Society of Animal Production, Volume 51, p.389-394, (1991) , (Full PDF)