Z. . Birkner, T. Máhr, E. Péter, in N. . Rodek Berkes, „Characteristics of Innovation in Regions with Small- and Medium- Sized Towns“, OE, let. 64, št. 2, str. 34–42, jul. 2018, Pridobljeno: 24. november 2025. [Na spletu]. Dostopno na: https://old.journals.um.si/index.php/oe/article/view/2183