H. De Cooman, E. Pauwels, H. Vrielinck, E. Sagstuen, F. Callens, M. Waroquier PosterConference / event / venue 13th International Conference on the Applications of Density Functional Theory in Chemistry and Physics (DFT09)Lyon, FranceMonday, 31 August, 2009 to Friday, 4 September, 2009