Multiyear Aerosol Study Based on Lidar&Sunphotometer Measurements in Romania Anca Nemuc, Ioannis Binietoglou, Simona Andrei, Alexandru Dandocsi and Horatiu Stefanie EPJ Web of Conferences, 119 (2016) 24001 Published online: 07 June 2016 DOI: 10.1051/epjconf/201611924001