Nitrate Sources Study within the Danube River Basin

Nitrate sources and mixing in the Danube watershed: implications for transboundary river basin monitoring and management (HALDER et al., 2022)

https://www.nature.com/articles/s41598-022-06224-5

Also…

Modelling water and nutrient fluxes in the Danube River Basin with SWAT (MALAGÓ et al., 2017)

https://www.sciencedirect.com/science/article/pii/S0048969717313505

Website:

Soil & Water Assessment Tool (SWAT)[Texas A&M/USDA-ARS]

https://swat.tamu.edu/