The far-UV break in quasar energy distributions: dust?
  A prominent continuum steepening is observed in quasar energy distributions near 1100A. We review possible interpretations for the origin of the so-called far-UV break, putting emphasis on those that favor the emergence of an upturn in the extreme-UV. 
L. Binette, Y. Krongold, S. Haro-Corzo, A. Andersen