1] MSc Veselin Blagojević HEAT RECOVERY OF VENTILATION AIR IN EXISTING EDUCATIONAL BUILDING IN DOBOJ" - 13th International Conference on Accomplishments in Mechanical and Industrial Engineering, 26.02.2017.
(https://ekonferencije.com/sr1/rad/heat-recovery-of-ventilation-a/4838)

2] MSc Veselin Blagojević POSSIBILITY OF USE HEAT ENERGY FROM WASTE WATER SEWAGE SYSTEM FOR HEATING OF BUILDINGS " - 13th International Conference on Accomplishments in Mechanical and Industrial Engineering, 29.01.2017.
(https://ekonferencije.com/sr1/rad/possibility-of-use-heat-energy/4767)