LUKAS, Zdenek. New EU member states: booming agro-food trade, Poland ahead. In Agricultural economics : an international journal = mezinárodní vědecký časopis. - Prague : Institute of Agricultural and Food Information, 2005. ISSN 0139-570X, 2005, vol. 51, no. 4, s. 175-180. Dostupné na : <http://www.agriculturejournals.cz/publicFiles/58241.pdf>