@inproceedings{Zhang:2016E1,
  author = "Zhang, Yu",
  title = "{Lowering the ARGO-YBJ energy threshold to a few tens of GeV by using the double front shower events }",
  doi = "10.22323/1.236.0720",
  booktitle = "Proceedings of The 34th International Cosmic Ray Conference {\textemdash} PoS(ICRC2015)",
  year = 2016,
  volume = "236",
  pages = "720"
}