Cudennec, C., Arheimer, B., Blöschl, G., & Toth, E. (2020). The community consultation process leading to the compilation of the 23 Unsolved Problems in Hydrology (UPH). In EGU General Assembly 2020. EGU General Assembly 2020, Vienna, Austria. Copernicus. https://doi.org/10.5194/egusphere-egu2020-11302