by Abdel-Fattah, A.A., Said, F.I.A., Ebraheem, S., El-Kelany, M., El Miligy, A.A.
Published in Radiation physics and chemistry (Oxford, England : 1993) (01.03.1999)

by Rehim, F.Abdel, Said, F.I.A., Abdel-Azim, Abdel-Azim A., El-Dessouky, M.M., Youssef, N.
Published in International journal of radiation applications and instrumentation. Part C, Radiation physics and chemistry (1987)