LIN, Shinemin. Structure Theorems of Specker Groups (I). International Journal for Innovation Education and Research, Dhaka, Bangladesh, v. 3, n. 8, p. 82–87, 2015. DOI: 10.31686/ijier.vol3.iss8.412. Disponível em: https://scholarsjournal.net/index.php/ijier/article/view/412.. Acesso em: 23 dec. 2024.