R. Medina (2014) Exponential Stability Criteria for Nonautonomous Difference Systems, International Journal of Mathematics and Mathematical Sciences, Volume 2014 (2014), Article ID 206343, 7 pages DOI: http://dx.doi.org/10.1155/2014/206343 2.

R. Medina (with S. Ivanov, M.Kipnis) (2014). On the stability of the Cartesian product of a neural ring and an arbitrary neural network. Advances in Difference Equations, 2014:176 DOI: 10.1186/1687-1847-2014-176

R. Medina (2013). Stabilization of slowly time-varying discrete systems with state delays. Journal of Difference Equations and Applications, Vol 19, Issue 4, 667-679, DOI: 10.1080/10236198.2012.678836

R. Medina & C. Martínez (2013). Exponential Stability Criteria for Discrete Time-Delay Systems, International Journal of Robust and Nonlinear Control, John Wiley & Sons Ltd. DOI:10.1002/rmc.3103