1. Fuzzy expert marketing-mix model
:ALY, Shady - VRANA, Ivan. Fuzzy expert marketing-mix model. In Agricultural economics : an international journal = mezinárodní vědecký časopis. - Prague : Institute of Agricultural and Food Information, 2005. ISSN 0139-570X, 2005, vol. 51, no. 2, s. 69-79. Available on Internet: <http://www.agriculturejournals.cz/publicFiles/58223.pdf>