ŠILEROVÁ, Edita - KUČÍRKOVÁ, L. Knowledge and information systems. In Agricultural economics. - Prague : Institute of Agricultural and Food Information, 2008. ISSN 0139-570X, 2008, vol. 54, no. 5, s. 217-223. Dostupné na : <http://www.agriculturejournals.cz/publicFiles/01477.pdf>