Maps of artificial sky brightness and upward emission in Italy from DMSP   satellite measurements
  We obtained the map of the zenith brightness of the night sky in Italy. The artificial sky brightness in each site is computed by integration of the contributions by each unitary area of surface obtained by applying a propagation function to the upward emission of the area as obtained from DMSP satellite night-time images. We also evaluated the emission versus population relationship comparing the relative emissions of a number of cities of various populations. 
F. Falchi, P. Cinzano (Dipartimento di Astronomia Padova, Italy)