Ali, M.
Department of Physics, COMSATS Institute of Information Technology (CIIT), 44000 Park Road, Islamabad, Pakistan
mubarak74@comsats.edu.pk; Ürgen, M.
Department of Metallurgical and Materials Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
urgen@itu.edu.tr
(2015-01-23)