TY - JOUR A1 - Ataie-Ashtiani, B. A1 - Simmons, C. T. T1 - The millennium-old hydrogeology textbook The Extraction of Hidden Waters by the Persian mathematician and engineer Abubakr Mohammad Karaji (953 CE–1029 CE) JO - Hydrol. Earth Syst. Sci. J1 - HESS VL - 24 IS - 2 SP - 761 EP - 769 Y1 - 2020/02/19 PB - Copernicus Publications SN - 1607-7938 UR - https://hess.copernicus.org/articles/24/761/2020/ L1 - https://hess.copernicus.org/articles/24/761/2020/hess-24-761-2020.pdf DO - 10.5194/hess-24-761-2020 ER -