@article{Seto:2014GY, author = "Seto, Osamu and Choi, Ki-Young and Lee, Hyun Min", title = "{Vector dark matter and Fermi LAT gamma ray line}", doi = "10.22323/1.180.0408", journal = "PoS", year = 2014, volume = "EPS-HEP 2013", pages = "408" }