GHAHRAMANI, Hoger; SATTARI, Saman. Left derivable maps at non-trivial idempotents on nest algebras. Annales Mathematicae Silesianae, [S. l.], v. 33, p. 97–105, 2019. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/13653. Acesso em: 5 dec. 2025.