Cosgrove, G.P., P.S. Taylor, and A. Jonker. “Sheep Performance on Perennial Ryegrass Cultivars Differing in Concentration of Water-Soluble Carbohydrate”. Journal of New Zealand Grasslands 77 (January 1, 2015): 123–130. Accessed November 7, 2026. https://www.nzgajournal.org.nz.myth.agency/index.php/JoNZG/article/view/491.