Authors
Mirjeta Mediji Arifi
Faculty of Natural Sciences and Mathematics, Physics Department, Cyril and Methodius University of Skopje, Skopje, North Macedonia
Faculty of Natural Sciences and Mathematics, Physics Department, State University of Tetovo, Tetovo, North Macedonia
Faculty of Natural Sciences and Mathematics, Physics Department, Cyril and Methodius University of Skopje, Skopje, North Macedonia