@Article{hess-24-761-2020,
AUTHOR = {Ataie-Ashtiani, B. and Simmons, C. T.},
TITLE = {The millennium-old hydrogeology textbook \textit{The Extraction of Hidden Waters} by the Persian mathematician and engineer Abubakr Mohammad Karaji 
(953\,CE--1029\,CE)},
JOURNAL = {Hydrology and Earth System Sciences},
VOLUME = {24},
YEAR = {2020},
NUMBER = {2},
PAGES = {761--769},
URL = {https://hess.copernicus.org/articles/24/761/2020/},
DOI = {10.5194/hess-24-761-2020}
}