SUBEDI, B. H.; SINGH, A. Escaping Sets of Hyperbolic Semigroups. The Nepali Mathematical Sciences Report, [S. l.], v. 35, n. 1-2, p. 45–52, 2018. DOI: 10.3126/nmsr.v35i1-2.29979. Disponível em: https://www.nepjol.info/index.php/nmsr/article/view/29979. Acesso em: 17 may. 2024.