An Exceptional Radio Flare in Markarian 421Joseph L. Richards, Talvikki Hovatta, Matthew L. Lister, Anthony C. S. Readhead, Walter Max-Moerbeck, Tuomas Savolainen, Emmanouil Angelakis, Lars Fuhrmann, Margo F. Aller, Hugh D. Aller, Ioannis Myserlis and Vassilis KaramanavisEPJ Web of Conferences, 61 (2013) 04010DOI: https://doi.org/10.1051/epjconf/20136104010
