@inproceedings{Voronin:2021WC, author = "Voronin, D. and Fazliakhmetov, Almaz and Ushakov, N. and Lukanov, A. and Lubsandorzhiev, B. and Sidorenkov, Andrei", title = "{Calibration system of EAS Cherenkov arrays using commercial drone helicopter.}", doi = "10.22323/1.395.0268", booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)", year = 2021, volume = "395", pages = "268" }