OSTROVSKY, V.L.; SILVESTROV, S.D. Representations of the real forms of calibrated analogue of the Lie algebra . Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 44, n. 11, p. 1518–1524, 1992. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/8254. Acesso em: 5 dec. 2025.