A note on the periodic cycle of Xn+2=(1+Xn+1)/(Xn). - H. M. El-Owaidy; M. M. El-Afifi (Appl. Math. Comput., 2000)

On the recursive sequence Xn+1=A/xnp+B/xn-1q+C/xn-2s. - H. M. El-Owaidy; A. Ragab; M. M. El-Afifi (Appl. Math. Comput., 2000)

Necessary and sufficient conditions for boundedness and stability of N-order difference equation. - M. M. El-Afifi (Appl. Math. Comput., 2003)

On the difference equation xn+1=a+α(sn+sn-1+...+xn-k+2)/xn-k+1. - M. M. El-Afifi; A. M. Ahmed (Appl. Math. Comput., 2003)

On the recursive sequence xn+1=α+βxn+γsn-1/Bxn+Cxn-1. - M. M. El-Afifi (Appl. Math. Comput., 2004)