L.A. ALEXEYEVA. Ether in Biquaternionic Presentation: A Study of Its Density and Characteristics. Mathematics and Computer Science: Research Updates Vol. 3, [S. l.], p. 146–160, 2025. DOI: 10.9734/bpi/mcsru/v3/4455. Disponível em: https://stm.bookpi.org/MCSRU-V3/article/view/17489. Acesso em: 13 jun. 2026.