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- Agriculture 36
- Technology 32
- Groundwater 29
- Irrigation 26
- Water quality 25
- Economics 19
- Water consumption 19
- Watersheds 15
- Politics and government 13
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Publisher
- Tikhnun ha-mayim le-Yiśraʼel be-ʻe.m. 11
- Kenaan 6
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- International Association of Hydrological Sciences 2
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Institution
- Oregon State University 99
Decade
- 1970-1979 99