1. Andreae MO, Schimel DS (eds) (1989) Exchange of trace gases between terrestrial ecosystems and the atmosphere. Report of the Dahlem Workshop. John Wiley Sons, Chichester.
2. Galbally I (ed) (1989) International global atmospheric chemistry (IGAC) program: a core project of the International Geosphere-Biosphere Programme. Obtainable from IGBP Secretariat, Royal Swedish Academy of Sciences, Stockholm.
3. IGBP (1990) The International Geosphere-Biosphere Programme: a study of global change. The Initial Core Projects, IGBP Report No 12, IGBP Secretariat, Royal Swedish Academy of Sciences, Stockholm, Sweden.
4. Matson PA, Ojima DS (eds) (1990) The terrestrial biological aspect of global atmospheric chemistry: a complementary research plan for terrestrial ecosystem interactions with tropospheric chemistry. IGBP Report Series. (In Press)