TISHCHENKO, S. V. A remark on quasianalytic vectors for a pair of anticommuting operators. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 6, p. 878–880, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5077. Acesso em: 6 dec. 2025.