1. Lazar Stojanović (2017) "MINING PRODUCTION WITH ENGAGEMENT OF OTHER COMPANIES EQUIPMENT AND MASHINERY - PRAXIS AND PESRPECTIVE IN THE WORLD AND THE REPUBLIC OF SRPSKA" - 7. Balkanski rudarski kongres
(https://ekonferencije.com/sr1/rad/mining-production-with-engagem/5164)

2. Lazar Stojanović (2017) "DYNAMIC MODELING OF ORGANIZATIONAL STRUCTURE IN THE CONTEXT OF HUMAN RESOURCES OPTIMIZATION" - 7. Balkanski rudarski kongres
(https://ekonferencije.com/sr1/rad/dynamic-modeling-of-organizati/5142)

3. Lazar Stojanović (2017) "Mathematical model of stacking operation of stacker/reclaimers" - 7. Balkanski rudarski kongres
(https://ekonferencije.com/sr1/rad/mathematical-model-of-stacking/5139)