J. Ognjanović, B. Krstić, T. Rađenović, and M. Jovanović Vujatović, “INTELLECTUAL CAPITAL EFFICIENCY AS THE DETERMINING FACTOR OF SUSTAINING PROFITABILITY IN THE COVID-19 PANDEMIC CONDITIONS: DOES THE AGE OF THE ENTERPRISE MATTER IN HOTEL INDUSTRY?”, ASHU- ES, vol. 22, no. 4, Feb. 2023.