David Gómez-Ullate, P.M. Santini, M. Sommacal, F. Calogero (2012). Understanding Complex Dynamics by Means of an Associated Riemann Surface. Physica D: Nonlinear Phenomena.

David Gómez-Ullate, Niky Kamran, Robert Milson (2012). Two-Step Darboux Transformations and Exceptional Laguerre Polynomials. Journal of Mathematical Analysis and Applications.

David Gómez-Ullate, Niky Kamran, Robert Milson (2012). On Orthogonal Polynomials Spanning a Non-Standard Flag. Contemporary Mathematics.

David Gómez-Ullate, Sara Lombardo, Manuel Mañas, Marta Mazzocco, Frank Nijhoff, Matteo Sommacal (2010). Integrability and Nonlinear Phenomena. Journal of Physics A: Mathematical and Theoretical.

David Gómez-Ullate, N Kamran, R Milson (2010). Exceptional Orthogonal Polynomials and the Darboux Transformation. Journal of Physics A: Mathematical and Theoretical.

David Gómez-Ullate, Niky Kamran, Robert Milson (2010). An Extension of Bochner's Problem: Exceptional Invariant Subspaces. Journal of Approximation Theory.

David Gómez-Ullate, Niky Kamran, Robert Milson (2009). An Extended Class of Orthogonal Polynomials Defined by a Sturm--Liouville Problem. Journal of Mathematical Analysis and Applications.

F Calogero, David Gómez-Ullate, P M Santini, M Sommacal (2009). Towards a Theory of Chaos Explained as Travel on Riemann Surfaces. Journal of Physics A: Mathematical and Theoretical.

(2008). Nonlinear Evolution Equations and Dynamical Systems 2007: 17th NEEDS Workshop, L'Ametlla de Mar, Spain. Journal of Nonlinear Mathematical Physics.

Francesco Calogero, David Gomez-Ullate (2008). Asymptotically Isochronous Systems:. Journal of Nonlinear Mathematical Physics.