Pursimo, TapioOjha, RoopeshDahle, Haakon2021-06-032021-06-032020-05-07Pursimo, Tapio; Ojha, Roopesh; Dahle, Haakon; Bright Optical Flare in the flaring gamma-ray BL Lac S5 1803+784; The Astronomer's Telegram, May 7, 2020; https://www.astronomerstelegram.org/?read=13711http://hdl.handle.net/11603/21666en-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.opticalgamma ray>GeVVHEAGNblazarquasarText