TY - JOUR A1 - Ouedraogo, I. A1 - Vanclooster, M. T1 - A meta-analysis and statistical modelling of nitrates in groundwater at the African scale JO - Hydrol. Earth Syst. Sci. J1 - HESS VL - 20 IS - 6 SP - 2353 EP - 2381 Y1 - 2016/06/17 PB - Copernicus Publications SN - 1607-7938 UR - https://hess.copernicus.org/articles/20/2353/2016/ L1 - https://hess.copernicus.org/articles/20/2353/2016/hess-20-2353-2016.pdf DO - 10.5194/hess-20-2353-2016 ER -