@article{Poluianov:2017FV, author = "Poluianov, Stepan and Usoskin, Ilya and Mishev, Alexander and Smart, Don and Shea, Margaret A.", title = "{Revisited definition of GLE}", doi = "10.22323/1.301.0125", journal = "PoS", year = 2017, volume = "ICRC2017", pages = "125" }