MEL'NICHENKO, I. P.; PLAKSA, S. A. Potential fields with axial symmetry and algebras of monogenic functions of vector variables. III. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 2, p. 228–243, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5000. Acesso em: 6 dec. 2025.