B-series and Order Conditions for Exponential Integrators. - Håvard Berland; Brynjulf Owren; Bård Skaflestad (SIAM J. Numer. Anal., 2005)

Conservation of phase space properties using exponential integrators on the cubic Schrödinger equation. - Håvard Berland; Alvaro L. Islas; Constance M. Schober (J. Comput. Phys., 2007)

EXPINT - A MATLAB package for exponential integrators. - Håvard Berland; Bård Skaflestad; Will M. Wright (ACM Trans. Math. Softw., 2007)