@inproceedings{Kawata:2021cP, author = "Kawata, Kazumasa", title = "{Observation of ultra-high-energy diffuse gamma rays from the galactic plane with the Tibet air shower array}", doi = "10.22323/1.395.0795", booktitle = "Proceedings of 37th International Cosmic Ray Conference {\textemdash} PoS(ICRC2021)", year = 2021, volume = "395", pages = "795" }