Radiation Properties of GeV Narrow Line Seyfert 1 Galaxies
  The broadband SEDs of four gamma-ray NLS1s are compiled and explained with the leptonic model. It is found that their characteristics and fitting parameters of the observed SEDs are more like FSRQs than BL Lacs. 
Jin Zhang, X. N. Sun, S. N. Zhang, E. W. Liang
astro-ph.HE