Caballero-Garcia, M. D.; Papadakis, I. E.; Nicastro, F.; Ajello, M.
(2012)
<br/> Aims: We analyse data from a 58 month long, continuous Swift/Burst Alert Telescope (BAT) series of observations of the five brightest Seyfert galaxies at hard X-rays, to study their flux and spectral variability in ...