KERVALISHVILI, Nikoloz A. Dynamics of vortex structures in collisionless pure and gas-discharge nonneutral electron plasmas. Journals of Georgian Geophysical Society, [S. l.], v. 15, p. 120–136, 2013. Disponível em: https://ggs.openjournals.ge/index.php/GGS/article/view/54. Acesso em: 3 apr. 2025.