Rupp, K., Grasser, T., & Jüngel, A. (2011). Parallel preconditioning for spherical harmonics expansions of the Boltzmann transport equation. In 2011 International Conference on Simulation of Semiconductor Processes and Devices. 2011 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD), Osaka, Japan. IEEE. https://doi.org/10.1109/sispad.2011.6034963