Environmental Remote Sensing Department, National Institute for Research and Development for Optoelectronics (INOE), 409 Atomistilor St., MG-5, RO-077125, Magurele, Ilfov, Romania
Faculty of Geology and Geography, Department of Mineralogy, Petrology and Economic Geology, Sofia University “St Kliment Ohridski”, 15 Tsar Osvoboditel Blvd, 1504 Sofia