GASANENKO, V. A.; ROITMAN, A. B. Rarefaction of moving diffusion particles. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 5, p. 691–694, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3789. Acesso em: 27 apr. 2025.