Addison, HJ, and Congdon, Robert A (2003) Identifying tropical pasture legumes for use in farm forestry. Agroforestry News, 12 (4). p. 18.

Congdon, Bob, and Addison, Heath (2003) Optimising Nutrition for Productive and Sustainable Farm Forestry Systems: pasture legumes under shade. Report. Rural and Industries Research Development Corporation, Barton, ACT, Australia.

Addison, H.J. (2003) Shade tolerance of tropical forage legumes for use in agroforestry systems. PhD thesis, James Cook University.

Addison, Heath, Congdon, Robert, Gardiner, Chris, and Holtrum, Joe (2000) Legumes for forestry systems. In: Proceedings of the Australian Forest Growers Biennial Conference: opportunities for the new millennium. pp. 231-234. From: Australian Forest Growers Biennial Conference 2000: opportunities for the new millennium, 4-6 September 2000, Cairns, QLD, Australia.