The Origin of Nitrogen in Aquifer Systems in the Great Plain, Hungary
I. Varsány and L. Ó. Kovács
Institute of Mineralogy, Geochemistry and Petrology, Attila József University, H6701 Szeged, Pf. 651, Hungary
Hungarian Geological Survey, H1442 Budapest, Pf. 106., Stefánia út 14., Hungary