1. 1 “Alexandru Ioan Cuza” University , Faculty of Physics , Blvd. Carol I, no 11 , , Iași , Romania
2. 2 “Alexandru Ioan Cuza” University, Research Center with Integrated Techniques for Atmospheric Aerosol Investigation in Romania , RECENT Air, Laboratory of astronomy and astrophysics, Astronomy Observatory , 5-7 Mihail Sadoveanu , Iași , Romania