LOSHKAREV, M. O. TO THE QUESTION ABOUT THE EXISTENCE OF ODD PERFECT NUMBERS. Science and Transport Progress , [S. l.], n. 17, p. 144–146, 2007. DOI: 10.15802/stp2007/17601. Disponível em: https://stp.ust.edu.ua/article/view/17601. Acesso em: 6 may. 2024.