1] mr Vladimir Petković Ranking of forest enterprises organizational units in accordance with the possibilities of differential rent allocation " - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska, 12.10.2017.
(https://ekonferencije.com/hr/rad/ranking-of-forest-enterprises-/5532)

2] mr Vladimir Petković Skidding distances and skidding factor" - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska, 19.09.2017.
(https://ekonferencije.com/hr/rad/skidding-distances-and-skiddin/5471)

3] mr Vladimir Petković 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, 07.09.2017.
(https://ekonferencije.com/hr/rad/influence-of-different-harvest/5397)