N. Veselinović, Đorđe Ćuzović, and F. Ž. Bugarčić, “Economic Complexity in CEE Countries: The Role of Innovations, Investments and Education”, Manag: J. Sustain. Bus. Manag. Solut. Emerg. Econ., vol. 30, no. 2, pp. 15–26, Oct. 2025.