BOĎA, Martin - ZIMKOVÁ, Emília. Efficiency in the Slovak banking industry: a comparison of three approaches. In Prague Economic Papers. - Praha : Vysoká škola ekonomická, 2015. ISSN 1210-0455, 2015, vol. 24, no. 4, pp. 434-451. Available on: https://doi.org/10.18267/j.pep.546.