Extensions of Certain Partial Automorphisms of $\mathcal{L}^{\mathcal{ \ast }}(V_{\infty })$. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 99, p. 183–191, 2009. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/121. Acesso em: 4 feb. 2026.