DRENKOVSKA, Marija, 2015, The role of intangible capital in developing countries : the case of innovation activity in Slovenia and the Western Balkans [na spletu]. Doktorska disertacija. Ljubljana : M. Drenkovska. [Dostopano 26 marec 2025]. Pridobljeno s: http://www.cek.ef.uni-lj.si/doktor/drenkovska.pdf