EIGEN, Stanley; LINDHE, John. Exhaustive Weakly Wandering Sequences and Alpha-type Transformations. Armenian Journal of Mathematics, Yerevan, Armenia, v. 7, n. 2, p. 121–145, 2015. Disponível em: https://armjmath.sci.am/index.php/ajm/article/view/116. Acesso em: 3 apr. 2025.