Niaz, Abid, et al. “Nitrate Pollution of Ground Water and Impacts of Nitrogenous Fertilizers and Irrigation on Dynamics of NO3-N Movement in Soils of Punjab, Pakistan”. EQA - International Journal of Environmental Quality, vol. 50, no. 1, Jan. 2022, pp. 39-54, doi:10.6092/issn.2281-4485/15007.