FOUEGAP, P. A.; DONGO, D.; WOUKENG, J. L. Approximation by diffusion of semiconductor Boltzmann equation. Tamkang Journal of Mathematics, [S. l.], v. 57, n. 3, p. 219–252, 2026. DOI: 10.5556/j.tkjm.57.2026.5978. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/5978. Acesso em: 20 sep. 2026.