Proceedings of the workshop held from October 15-17, 2002 at Quaid-i-Azad University, Islamabad QAD creator xxu Islamabad National Centre for Physics, QAU, Islamabad National Centre for Physics, QAU, Islamabad eng HB Asghar Qadir and Khalid Saifullah Qadir, Asghar 530.15 Nil 180118 20180118121902.0