Hypercyclictty and Countable Hypercyclicity for Adjoint of Operators. Baghdad Science Journal, Iraq, Baghdad, v. 7, n. 1, p. 191–199, 2010. DOI: 10.21123/bsj.2010.7.1.191-199. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2887.. Acesso em: 2 may. 2024.