@inproceedings{Nielsen:2018Lv, author = "Nielsen, Holger Bech and Froggatt, Colin and Jurman, Danijel", title = "{X-ray Line 3.55 keV from Dark Matter, Our Glass Pearls}", doi = "10.22323/1.318.0075", booktitle = "Proceedings of Corfu Summer Institute 2017 "Schools and Workshops on Elementary Particle Physics and Gravity" {\textemdash} PoS(CORFU2017)", year = 2018, volume = "318", pages = "075" }