@inproceedings{Muraki:2023tO, author = "Muraki, Yasushi", title = "{The 48 year data analysis of Nagoya muon telescope - Discovery of (125+-45) day periodicity}", doi = "10.22323/1.444.1255", booktitle = "Proceedings of 38th International Cosmic Ray Conference {\textemdash} PoS(ICRC2023)", year = 2023, volume = "444", pages = "1255" }