Klement, L. ., Ľubica . Lesáková, V. . Klementová, and Ľuboš . Elexa. “Innovation Performance of the Slovak Republic”. Forum Scientiae Oeconomia, vol. 4, no. 3, Sept. 2016, pp. 115-26, https://ojs.wsb.edu.pl/index.php/fso/article/view/217.