6th International BAPT Conference "Power Transmissions 2019" : Varna, Bulgaria, June 19-22, 2019
7th International BAPT Conference "Power Transmissions 2020" : Borovets, Bulgaria, June 10-13, 2020
Key Trends in Transportation Innovation (KTTI-2019) : Khabarovsk, Russia, October 24-26, 2019