1. prof Dalibor Ballian (2017) "FOREST GENETIC RESOURCES IN BOSNIA AND HERZEGOVINA – STATE, LEGISLATIVE, CONSERVATION AND CLIMATE CHANGES" - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska
(https://ekonferencije.com/sr1/rad/forest-genetic-resources-in-bo/5255)

2. prof Dalibor Ballian (2017) "Addition to knowing of geneticla variabilty of Field Maple (Acer campestre L.) in Bosna and Hercegovina " - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska
(https://ekonferencije.com/sr1/rad/addition-to-knowing-of-genetic/5212)

3. prof Dalibor Ballian (2017) "Morphological variability of some properties of Field Maple (Acer campestre L.) in portions of natural populations of Bosna & Hercegovina" - Forest Science for Sustainable Development of Forests
25 Years of Forestry of the Republic of Srpska
(https://ekonferencije.com/sr1/rad/morphological-variability-of-s/5211)