[Abu-Nab, Ahmed K.; Morad, Adel M.; Selima, Ehab S.] Menoufia Univ, Fac Sci, Dept Math & Comp Sci, Shibin Al Kawm, Egypt.
[Selima, Ehab S.] Cent China Normal Univ, Fac Math & Stat, Wuhan, Peoples R China.
[Abu-Nab, Ahmed K.; Selima, Ehab S.] Acad Sci Res & Technol ASRT, Cairo, Egypt.
[Abu-Nab, Ahmed K.] Moscow Inst Phys & Technol, Phystech Sch Appl Math & Informat, Dolgoprudnyi, Russia.
[Morad, Adel M.] Univ Sadat City, Fac Comp & Artificial Intelligence, Sadat City, Egypt.