P. Lazor, J. Bystrická, T. Maďaričová, T. Tóth, J. Tomáš, and M. Å imko, “NITRATES IN INDIVIDUAL GROUNDWATER RESOURCES IN NITRA AND THEIR POSSIBLE RISKS TO THE POPULATION”, J microb biotech food sci, vol. 4, no. special issue 3 (Food Sciences), pp. 99–101, Feb. 2015.