Eigenstructure of nonselfadjoint complex discrete vector Sturm-Liouville problems. Villanueva, Rafael J.; Jódar, Lucas — 2005 Advances in Difference Equations [electronic only]
A nonstandard dynamically consistent numerical scheme applied to obesity dynamics. Villanueva, Rafael J.; Arenas, Abraham J.; González-Parra, Gilberto — 2008 Journal of Applied Mathematics