Two-Tier UAV-based Low Power Wide Area Networks: A Testbed and Experimentation Study. - Srdjan Sobot; Milan Lukic; Dusan Bortnik; Vladimir Nikic; Brena Kelly Sousa Lima; Marko Beko; Dejan Vukobratovic (CIoT, 2023)

Lightweight Digit Recognition in Smart Metering System Using Narrowband Internet of Things and Federated Learning. - Vladimir Nikic; Dusan Bortnik; Milan Lukic; Dejan Vukobratovic; Ivan Mezei (Future Internet, 2024)

Evaluation of Machine Learning Algorithms for NB-IoT Module Energy Consumption Estimation Based on Radio Channel Quality. - Dusan Bortnik; Vladimir Nikic; Srdjan Sobot; Dejan Vukobratovic; Ivan Mezei; Milan Lukic (IEEE Access, 2025)