Multiyear Aerosol Study Based on Lidar&Sunphotometer Measurements in RomaniaAnca Nemuc, Ioannis Binietoglou, Simona Andrei, Alexandru Dandocsi and Horatiu StefanieEPJ Web of Conferences, 119 (2016) 24001DOI: https://doi.org/10.1051/epjconf/201611924001