FOTYMA, Mariusz in DUER, Irena, 2006, Implementation of nitrate directive to Poland. Acta agriculturae Slovenica [na spletu]. 2006. Vol. 87, no. Št. 1, p. 51–58. [Dostopano 18 maj 2025]. Pridobljeno s: http://www.dlib.si/details/URN:NBN:SI:doc-RACF6Z2B