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Graw, Valerie, Dubovyk, Olena, Duguru, Moses, Heid, Paul, Ghazaryan, Gohar, Villagrán de León, Juan Carlos, Post, Joachim, Szarzynski, Joerg, Tsegai, Daniel and Walz, Yvonne, "Assessment, monitoring, and early warning of droughts: the potential for satellite remote sensing and beyond" in Drought Challenges – Policy Options for Developing Countries, In: Current Directions in Water Scarcity Research ed. Mapedza, Everisto, Tsegai, Daniel, Bruntrup, Michael and McLeman, Robert (Amsterdam: Elsevier Ltd, 2019), 115-131. 793  
Graw, Valerie, Ghazaryan, Gohar, Dall, Karen, Delgado Gómez, Andoni, Abdel-Hamid, Ayman, Jordaan, Andries, Piroska, Ruben, Post, Joachim, Szarzynski, Joerg, Walz, Yvonne and Dubovyk, Olena, (2017). Drought Dynamics and Vegetation Productivity in Different Land Management Systems of Eastern Cape, South Africa—A Remote Sensing Perspective. Sustainability, 9(10), 1-19 867   0
Walz, Yvonne, Min, Annika, Dall, Karen, Duguru, Moses, Villagrán de León, Juan Carlos, Graw, Valerie, Dubovyk, Olena, Sebesvari, Zita, Jordaan, Andries and Post, Joachim, (2020). Monitoring progress of the Sendai Framework using a geospatial model: The example of people affected by agricultural droughts in Eastern Cape, South Africa. Progress in Disaster Science, 5 1-12 881 220
Siebert, Stefan, Cornish, Natalie, Doell, Petra, Dubovyk, Olena, Engels, Olga, Eyshi-Rezaei, Ehsan, Gerdener, Helena, Gonzalez, Javier, Graw, Valerie, Hagenlocher, Michael, Herbert, Claudia, Kusche, Juergen, Landmann, Tobias, Meza, Isabel, Nouri, Hamideh, Popat, Eklavyya and Rupp, Daniel ed. Proceedings of the GRoW Midterm Conference – Global analyses and local solutions for sustainable water resources management 2019/02/20-21 Berlin. Berlin: adelphi research gemeinnützige GmbH, 2019. 475 206
Graw, Valerie, Ghazaryan, Gohar, Schreier, Jonas, González, Javier, Abdel-Hamid, Ayman, Walz, Yvonne, Dall, Karen, Post, Joachim, Jordaan, Andries J. and Dubovyk, Olena ed. Timing is Everything - Drought Classification for Risk Assessment 2018/07/22-27 Valencia. Valencia: IEEE, 2019. 474  
Walz, Yvonne, Dall, Karen, Graw, Valerie, Villagrán de León, Juan Carlos, Haas, Susanne, Kussul, Nataliia and Jordaan, Andries (2018). Understanding and reducing agricultural drought risk: Examples from South Africa and Ukraine. United Nations University - Institute for Environment and Human Security. 1744 1847