@inproceedings{Okumura:2021sl, author = "Okumura, Akira", title = "{ROBAST 3}", doi = "10.22323/1.395.0183", booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)", year = 2021, volume = "395", pages = "183" }