1. Jojić Glavonjić, T., Doljak, D., Brankov, J. & Filipović, M. (2019). Resident's Perception Toward Protected Areas - Landscape of Exceptional Features "Vlasina" (Serbia). Carpathian Journal of Earth and Environmental Sciences, 14 (1). 5-17.
2. Doljak, D., Stanojević, G., Radovanović, M. & Malinović Milićević, S. (2018). Estimation of photovoltaic power generation potential in Serbia based on irradiance, air temperature and wind speed data. Thermal Science, 22 (6, Part A), 2297-2307.
3. Doljak, D. & Stanojević, G. (2017) Evaluation of natural conditions for site selection of ground-mounted photovoltaic power plants in Serbia. Energy, 127, 291-300.
4. Doljak, D., Popović, D. & Kuzmanović, D. (2017) Photovoltaic potential of the City of Požarevac, Renewable and Sustainable Energy Reviews, 73, 460-467..