1. mr Ozren Žolja (2017) "Towards the Flora of the Republika Srpska Database" - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska
(https://ekonferencije.com/en/paper/towards-the-flora-of-the-repub/5531)

2. mr Ozren Žolja (2017) "Influence of different harvesting methods on the damages on the standing trees" - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska
(https://ekonferencije.com/en/paper/influence-of-different-harvest/5397)