HUDÁK, Igor - KAFKOVÁ, Eva - BRIČOVÁ, Zuzana. Technical Efficiency of Small and Medium Sized Enterprises in Machinery Sector of the Slovak Republic. - Registrovaný: Scopus. In Economic annals-XXI. - Kiev : Institute of Society Transformation, 2013. ISSN 1728-6239, 2013, no. 11-12, pp. 62-66 online.