A new insight into the innermost jet regions: probing extreme jet variability with LOFT I. Donnarumma, A. Tramacere, S. Turriziani, L. Costamante, R. Campana, A. De Rosa and E. Bozzo EPJ Web of Conferences, 61 (2013) 04015 Published online: 09 December 2013 DOI: 10.1051/epjconf/20136104015