SOBOLEV , V. I.; SHCHERBIN , V. M. Integration of mappings of half-ordered rings . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 4, p. 547–555, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/7897. Acesso em: 6 dec. 2025.