1. METDATA User Guide;Arnold,1991
2. Asselin, N, Savoie, P, Lajoie, J, Tremblay, D, 1994, Evaluation of intensive forage conditioning on a disk mower, 94-1520, American Society of Agricultural Engineers
3. The annual cost of machinery calculated using actual cash flows;Audsley;Journal of Agricultural Engineering Research,1978
4. Factors affecting silage effluent production;Bastiman;Experimental Husbandry,1976
5. Notes on radiation in the atmosphere, 1;Brunt;Quarterly Journal of the Royal Meteorological Society,1932