HRON, Jan. Diagnosis of business health. In Agricultural economics : an international journal = mezinárodní vědecký časopis. - Prague : Institute of Agricultural and Food Information, 2004. ISSN 0139-570X, 2004, vol. 50, no. 12, s. 535-542. Available on Internet: <http://www.agriculturejournals.cz/publicFiles/58796.pdf>