GÓROWSKI, J.; ŁOMNICKI, A. Congruences characterizing twin primes. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica, [S. l.], v. 11, p. 95–100, 2012. Disponível em: https://studmath.uken.krakow.pl/article/view/13212. Acesso em: 29 oct. 2026.