Iannuzzi, Marcella, Thomas Chassaing, Thomas Wallman, and Jürg Hutter. “Ground and Excited State Density Functional Calculations With the Gaussian and Augmented-Plane-Wave Method”. CHIMIA 59, no. 7-8 (July 1, 2005): 499. Accessed March 28, 2024. https://www.chimia.ch/chimia/article/view/2005_499.