Kelly, Patrick L.; Diego, Jose M.; Rodney, Steven; Kaiser, Nick; Broadhurst, Tom; Zitrin, Adi; Treu, Tommaso; Pérez-González, Pablo G. et al. (2018). “Extreme magnification of an individual star at redshift 1.5 by a galaxy-cluster lens”. Nature Astronomy 2 (4): 334–342. doi : 10.1038/s41550-018-043...