1. Barber, W.P., Adamson, A.H., Altman, J.F.B., 1984. New methods of forage evaluation. In: Haresign, W., Cole, D.J.A. (Eds.), Recent Advances in Animal Nutrition. Butterworths, London, 1984, pp. 161–176.
2. Beever, D.E., Mould, F.L., 2000. Forage evaluation for efficient ruminant livestock production. In: Givens, D.I., Owen, E., Axford, R.F.E., Omed, H.M. (Eds.), Forage Evaluation in Ruminant Nutrition. CABI Publishing, Oxon, pp. 15–42.
3. Beever, D.E., Offer, N.W., Gill, M., 2000. The feeding value of grass and grass products. In: Hopkins, A. (Ed.), Grass: Its Production and Utilization, 3rd ed. Blackwell, Oxford, pp. 140–195.
4. Clancy, M.J., Wilson, R.K., 1966. Development and application of a new chemical method for predicting the digestibility and intake of herbage samples. In: Proceedings of the Xth International Grassland Congress, Helsinki, pp. 445–453.
5. The use of a cellulase technique to predict digestibility, metabolizable energy and net energy of forages;de Boever;Anim. Feed Sci. Technol.,1988