MC Dent, RE Schulze, GR Angus (1988): Crop water requirements,
deficits and water yeild for irrigation planning in Southern Africa.
Water Research Commission report number 118/1/88
MC Dent, SD Lynch, RE Schulze, AW Seed, HMM Wills (1989):
Mapping mean annual and other rainfall statistics over
Southern Africa.
Water Research Commission report number 109/1/89
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