NIKOLAYCHUK, A. Supplement to the Collatz Conjecture. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 15, p. 8120–8132, 2018. DOI: 10.24297/jam.v15i0.7876. Disponível em: https://rajpub.com/index.php/jam/article/view/7876. Acesso em: 27 apr. 2025.