V. Amiridis, D. Balis, E. Giannakaki, S. Kazadzis, A. Arola, E. Gerasopoulos: Characterization of the aerosol type using simultaneous measurements of the lidar ratio and estimations of the single scattering albedo, Atmospheric Research Vol 101 p.46-53 Doi: 10.1016/j.atmosres.2011.01.010, 2011