概素数
↑ Sándor, József; Dragoslav, Mitrinović S.; Crstici, Borislav (2006). Handbook of Number Theory I. Springer. p. 316. ISBN 978-1-4020-4215-7. https://link.springer.com/referencework/10.1007%2F1-4020-3658-2
↑ Rényi, Alfréd A. (1948). “On the representation of an even number as the sum of a single prime and single almost-prime number” (ロシア語). Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya 12 (1): 57–78. http://www.mathnet.ru/php/archive.phtml?wshow=paper&jrnid=im&paperid=3018&option_lang=eng.
↑ 例えば『概素数』 - コトバンクを参照
↑ Heath-Brown, D. R. (May 1978).