On the Asymptotic Behavior of x(n) = a(n) x(n) / x(n-1)", (with R. M. Abu-Saris), Journal of Mathematical Analysis and Applications, Vol. 280/1, 2003, 148-154.

"The forbidden set of x_{n+1}=p+((x_{n-1})/(x_{n}))" (with E. Camouzis), Journal of Difference Equations and Applications, Vol. 9, 2003, 721 - 730.

"On the recursive sequence x_{n+1}=p+((x_{n-k})/(x_{n}))" (with C. Kent and W. Kosmala), Journal of Difference Equations and Applications, Vol. 9, 2003, 739 - 750.
 

"On the period five trichotomy of all positive solutions of x_{n+1}=((p+x_{n-2})/(x_{n}))", (with E. Camouzis and W. Kosmala), Journal of Mathematical Analysis and Applications, Vol. 291, 2004, 40 - 49.

"Asymptotic behavior of solutions of x_{n+1}=p+((x_{n-1})/(x_{n}))", (with E. Camouzis), "New Progress in Difference Equations", Proceedings of the 6th Annual Conference on Difference Equations and Applications, Augsburg, Germany, 2001, CRC, Boca Raton, FL, 2004, 375 - 382.

"On the recursive sequence x_{n+1}=((x_{n-1}+x_{n-2})/(x_{n}+x_{n-2}))" (with E. Camouzis and G. Papaschinopoulos), Advances in Difference Equations, to appear.

"On the global character of x_{n+1}=((x_{n}+x_{n-k})/(A+x_{n-k}))" (with E. Chatterjee and G. Ladas), International Journal of Applied Mathematical Sciences, to appear.

"On the dynamics of x_{n+1}=((x_{n}+x_{n-1})/(Bx_{n}+Dx_{n-2}))" (with S. W. Schultz), Communications on Applied Nonlinear Analysis, to appear.