by ABDEL-ALL, Nassar H, ABDEL-BAKY, Rashad A, HAMDOON, Fathi M
Published in Applied mathematics and computation (05.01.2004)

by Abdel-All, Nassar H., Hamdoon, Fathi M.
Published in Applied mathematics and computation (25.05.2004)

by Hamdoon, Fathi M., Solouma, Emad M.
Published in Journal of geometry (01.03.2009)

by Abdel-All, Nassar H., Hamdoon, Fathi M.
Published in Journal of geometry (01.04.2004)

by Ali, Ahmad T, Hamdoon, Fathi M, Lopez, Rafael
Published in arXiv.org (23.07.2009)

by Hamdoon, Fathi M, Ali, Ahmad T, Lopez, Rafael
Published in arXiv.org (09.04.2009)