@article{Oka:2023/d, author = "Oka, Tomohiko and Ishizaki, Wataru", title = "{Detection of delayed gamma-ray emissions around supernova remnant HB9 using Fermi- LAT observations}", doi = "10.22323/1.444.0830", journal = "PoS", year = 2023, volume = "ICRC2023", pages = "830" }