@article{Ge:2021CE, author = "Ge, Yu-Hai and Lin, Su-Jie and Hu, Hong-bo and Yue, Hua", title = "{Simulating the galactic cosmic ray with non-uniform grids}", doi = "10.22323/1.395.0142", journal = "PoS", year = 2021, volume = "ICRC2021", pages = "142" }