合著作者
Mohamed AbdelhakemCanadian International College -Mathematics Department - Faculty of Science - Helwan University在 science.helwan.edu.eg 的电子邮件经过验证- M El-KadyProfessor of Math, Helwan University, Cairo , Egypt & Canadian International College CIC在 cic-cairo.com 的电子邮件经过验证
- Dumitru BaleanuLebanese American University,Beirut, Professor at Institute of Space Sciences,Bucharest在 lau.edu.lb 的电子邮件经过验证
