Nábrádi, András, Károly Pető, Viktória Balogh, Erika Szabó, Andrea Bartha, and Krisztián Kovács. 2009. “Efficiency Indicators in Different Dimension”. Applied Studies in Agribusiness and Commerce 3 (1-2): 7-22. https://doi.org/10.19041/APSTRACT/2009/1-2/1.