ŠEVELA, Marcel. Price levels convergence of consumer expenditures in the European Union. In Agricultural economics : an international journal = mezinárodní vědecký časopis. - Prague : Institute of Agricultural and Food Information, 2006. ISSN 0139-570X, 2006, vol. 52, no. 5, s. 197-204. Dostupné na : <http://www.agriculturejournals.cz/publicFiles/58019.pdf>