1. Institute of Hydraulics and Rural Water Management, Department of Water, Atmosphere and Environment, BOKU - University of Natural Resources and Life Sciences, Vienna, Austria
2. Department of System Agronomy, Gondar Agricultural Research Center, Gondar, Ethiopia
3. Department of Integrated Water and Land, Center for Agricultural Bioscience International, Nairobi, Kenya
4. Food and Agriculture Organization of the United Nations, Rome, Italy
5. Department of Soil and Water Research, International Center for Agricultural Research in the Dry Areas Amman, Amman, Jordan