1. Bradley, R.S., and Jones, P.D. (eds.) (1992) Climate since A.D.1500, Routledge, London, 679pp.
2. Bruijinzeel, L. (1990) Hydrology of moist tropical forests and effects of conservation: a state of knowledge review, UNESCO IHP, 224 pp.
3. Diaz, H.F., Bradley, R.S., and J.K. Eischeid (1989) Precipitation fluctuations over global land areas since the late 1800’s, J. Geophysical Research
94, 1195–1210.
4. Epstein, S., and Krishnamurthy, R.V. (1990) Environmental information in the isotopic records in trees, Philosophical Transactions of Royal Society of London
A330, 427–439.
5. Fujiwara, K. (1990) Environmental change in tropical Asia. In, Environmental change in monsoon Asia, Series of Research Center for Regional Geography, Hiroshima University 20, 1–63. (In Japanese.)