DU, Jie. The discovery and development of Imaginary number. Highlights in Science, Engineering and Technology, [S. l.], v. 38, p. 174–179, 2023. DOI: 10.54097/hset.v38i.5803. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/5803. Acesso em: 19 apr. 2026.