1. Agrostat: 1990, ?AGROSTAT.PC?, FAO, Rome Data on diskette.
2. Alcamo, J., Kreileman, G.J.J., Krol, M., and Zuidema, G.: 1994, ?Modeling the Global Society-Biosphere-Climate System. Part I: Model description and Testing. Accepted for publication in Water, Air and Soil Poll.
3. Andreae, M.O.: 1991, ?Biomass burning: its history, use and distribution and its impact on environmental quality and global climate?, In: Levine, J.S. (Ed.), Global biomass burning, MIT Press, Cambridge, pp. 3?28.
4. Baars, H.P., Berdowski, J.J.M., and Veldt, C.: 1991. ?Preliminary study on a global emissions database (EDGAR)?, TNO Institute of Environmental Sciences, Delft, TNO report R 91/136, June 1991.
5. Bouwman, A.F.: 1990, ?Exchange of greenhouse gases between terrestrial ecosystems and the atmosphere?, In: Bouwman, A.F. (Ed.), Soils and the greenhouse effect, Wiley and Sons, Chichester, pp. 61?127.